periodicity
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C2 noun /ˌpɪəriəˈdɪsɪti/

periodicity

周期性
Meaning
The quality or state of being regular or recurring at intervals.
Example
The periodicity of the moon’s phases has fascinated humans for centuries.
月亮相位的周期性几个世纪以来一直吸引着人类。
C2 noun /ˌsuːdəˈnɪmɪti/

pseudonymity

使用笔名
Meaning
the practice or state of using a pseudonym
Example
The author maintained pseudonymity throughout her career.
这位作者在整个职业生涯中一直使用笔名。
C2 adjective /ˌpɒliˈæn.ɪ.ɪʃ/

pollyannaish

过于乐观
Meaning
overly or blindly optimistic
Example
Her pollyannaish attitude ignored the obvious problems.
她的过于乐观的态度忽略了明显的问题。
C2 noun /foʊˈtɑːmɪtri/

photometry

光测量科学
Meaning
the science of measuring visible light in terms of its perceived brightness to human eyes
Example
Photometry helps in designing efficient lighting systems.
光度测量学帮助设计高效的照明系统。
C2 noun /proʊˈskrɪp.ʃən/

proscription

禁令
Meaning
the act of forbidding something, especially by law
Example
The proscription of child labor is an important human rights achievement.
禁止童工劳动是人权的重要成就。
C2 noun /ˌpɑːrtjʊˈrɪʃən/

parturition

分娩
Meaning
The act of giving birth; childbirth.
Example
The doctor explained the stages of parturition to the students.
医生向学生们解释了分娩的各个阶段。
C2 noun ˈfaɪ.təʊˌnjuː.tri.ənt

phytonutrient

植物营养素
Meaning
Chemical compounds produced by plants that are beneficial to human health but not essential nutrients.
Example
Broccoli is rich in phytonutrients that enhance immunity.
西兰花富含植物营养素，有助于增强免疫力。
C2 adjective /prɪˈsɛnʃənt/

presentient

预感
Meaning
Having a feeling or sense of something about to happen; predictive.
Example
She was presentient of the coming disaster.
她预感到即将来临的灾难。
C2 noun /ˈpɒm.əl/

pommel

剑柄或鞍座上的圆形按钮
Meaning
the rounded knob on the handle of a sword or saddle
Example
He gripped the sword firmly by the pommel.
他紧紧地抓住剑柄的波梅尔部分。
C2 noun /ˌpɛdəˈɡɒdʒɪks/

pedagogics

教育学
Meaning
the science or art of teaching
Example
He studied pedagogics to become a better teacher.
他学习了教育学，成为一名更好的教师。
C2 noun ˈpɑː.stər.ə.lɪ.zəm

pastoralism

牧羊主义, 以草为基础的放牧系统
Meaning
A form of animal husbandry where domesticated animals are released onto large vegetated outdoor lands for grazing.
Example
Pastoralism is a traditional way of managing livestock.
牧羊主义是传统的牲畜管理方式。
C2 noun /pɜːr bɔɪld raɪs/

Per boiled rice

预煮米
Meaning
Rice that has been partially boiled in the husk before milling; parboiled rice
Example
Per boiled rice retains more nutrients than regular white rice.
预煮米比普通白米保留更多营养成分。
C2 adjective /pʌɡˈneɪʃəs/

pugnacious

好斗的
Meaning
Having a quarrelsome or combative nature; eager to fight.
Example
His pugnacious attitude often got him into trouble.
他好斗的态度常常让他陷入麻烦。
C2 noun /ˈprɒm.ən.tɔːr.i/

promontory

海角
Meaning
A high point of land or rock projecting into a body of water.
Example
The lighthouse stood on a promontory overlooking the sea.
灯塔矗立在俯瞰大海的海角上。
C2 noun /ˈpaʊ.waʊ/

powwow

非正式会议
Meaning
an informal meeting or conference to discuss something
Example
The team held a quick powwow before the presentation.
团队在演示之前举行了一个快速的非正式会议。
C2 verb /fɪˈlændər/

philander

调情
Meaning
to engage in casual or frivolous romantic or sexual relationships
Example
He was known to philander with many women in town.
他以与城里许多女性交往而闻名。
C2 noun /ˈprɛlət/

prelate

高级神职人员
Meaning
A high-ranking member of the clergy, especially a bishop or abbot.
Example
The prelate delivered a sermon to the congregation.
普雷拉特向会众发表了讲道。
C2 noun /prəˈtuːbərəns/

protuberance

肿块
Meaning
A rounded swelling or lump on a surface.
Example
The doctor examined the small protuberance on his arm.
医生检查了他手臂上的小肿块。
C2 adjective /pərˈsuːənt/

pursuant

根据
Meaning
in accordance with or following something, especially a law or rule
Example
The decision was made pursuant to the regulations.
决定是根据规定做出的。
C2 noun /ˈprɪvɪti/

privity

私密关系, 合同关系
Meaning
A close, private, or special relationship; in law, the direct connection between parties to a contract.
Example
There was no privity of contract between the supplier and the customer.
供应商和客户之间没有合同关系。
C2 verb /prəˈpɪʃieɪt/

propitiate

安抚
Meaning
to win or regain the favor of someone by doing something that pleases them
Example
He offered gifts to propitiate the angry gods.
他提供礼物来安抚愤怒的神明。
C2 verb /ˈpɛkjʊˌleɪt/

peculate

贪污
Meaning
To embezzle or steal money, especially public funds.
Example
The corrupt official was found guilty of peculating government funds.
腐败的官员被判定为盗用政府资金。
C2 noun /proʊˈbɑːsɪs/

proboscis

象鼻
Meaning
The long, flexible nose of some animals, especially an elephant, or a tubular feeding and sucking organ in insects.
Example
The elephant used its proboscis to grab food.
大象用它的象鼻抓食物。
C2 adjective /ˈpliːnəri/

plenary

全体的
Meaning
complete in every way; fully attended or absolute
Example
The committee held a plenary session to discuss all matters of importance.
委员会召开了一个全体会议，讨论所有重要事项。
C2 noun /ˌpæl.ənˈkiːn/

Palanquin

花轿
Meaning
a covered chair or bed carried on poles by bearers
Example
The bride was carried to the wedding ceremony in an ornate palanquin.
新娘在装饰华丽的轿子中被抬到婚礼现场。
C2 adjective /ˈpɔːrtli/

portly

肥胖
Meaning
Having a stout or somewhat fat body, often implying dignity or authority.
Example
The portly man entered the room with confidence.
那个肥胖的男人自信地走进房间。
C2 noun /ˌpaɪrəˈmeɪniə/

pyromania

纵火的失控欲望
Meaning
An uncontrollable desire to set things on fire.
Example
The suspect was diagnosed with pyromania after repeated incidents of arson.
嫌疑人在多次纵火事件后被诊断为纵火狂。
C2 verb /ˈpɜːrdʒər/

perjure

作伪证
Meaning
To knowingly tell a lie in a court of law after swearing to tell the truth.
Example
He was accused of trying to perjure himself during the trial.
他被指控在审判过程中试图作伪证。
C2 noun /fɪˈlændərər/

philanderer

花花公子
Meaning
a man who habitually engages in casual romantic or sexual affairs
Example
The politician was exposed as a notorious philanderer.
这位政治家被揭露为一个臭名昭著的花花公子。
C2 noun /ˈpɜːrtnəs/

pertness

厚颜无耻
Meaning
boldness or forwardness in speech or behavior; sauciness
Example
Her pertness during the meeting surprised everyone.
她在会议中的厚颜无耻让所有人都惊讶。
C2 adjective /ˌpəʊstˈprændɪəl/

postprandial

餐后
Meaning
Occurring after a meal.
Example
He went for a postprandial walk after dinner.
他在晚餐后去散步。
C2 verb /ˈproʊtjuːbəreɪt/

protuberate

膨胀
Meaning
To swell out or bulge.
Example
The roots began to protuberate from the ground.
根开始从土壤中膨胀出来。
C2 adverb /pəˈfɔːs/

perforce

不可避免地
Meaning
by necessity; inevitably
Example
He had to perforce accept the decision.
他不得不不可避免地接受这个决定。
C2 adjective /pɒnˈtɪfɪkəl/

pontifical

与教皇或主教相关的；浮夸的或自命不凡的
Meaning
relating to a pope or bishop; pompous or self-important
Example
His pontifical manner annoyed the other members of the committee.
他的傲慢态度让委员会的其他成员感到不悦。
C2 adjective, noun /pləˈbiːən/

plebeian

平民
Meaning
common, ordinary, or belonging to the lower social classes
Example
The festival was enjoyed by both plebeian and noble citizens.
这个节日被平民和贵族市民共同享受。
C2 noun /ˈpælɪmpsɛst/

palimpsest

重写本
Meaning
a manuscript or document that has been written over but still bears traces of earlier writing; something reused or altered but still retaining traces of its earlier form
Example
The ancient manuscript was a palimpsest, showing faint traces of previous texts beneath the new writing.
这本古老的手稿是一个重写本，下面隐藏着以前文本的微弱痕迹。
C2 adjective /pəˈluːsɪd/

pellucid

透明
Meaning
Transparently clear; easy to understand.
Example
The lake water was so pellucid that you could see the stones at the bottom.
湖水是如此透明，你可以看到底部的石头。
C2 noun /prəˈfjuːʒən/

profusion

丰富
Meaning
an abundance or large quantity of something
Example
Spring brought a profusion of wildflowers to the valley.
春天给山谷带来了大量的野花。
C2 noun /ˈfɪl.ə.dʒɪ.nɪst/

philogynist

一个热爱或钦佩女性的人
Meaning
a person who loves or admires women
Example
As a known philogynist, he advocated for women's education.
作为一位著名的菲洛吉尼斯特，他倡导女性的教育。
C2 noun /ˌfoʊ.nəˈlɑː.dʒi/

phonology

语音学
Meaning
the study of the sound system of a language
Example
She is studying phonology to understand how sounds function in English.
她正在研究语音学，以了解英语中声音的功能。
C2 noun /ˈpɑːrvənuː/

parvenu

新富人
Meaning
A person who has recently gained wealth or influence but is not yet accepted socially.
Example
He was seen as a parvenu who lacked refinement despite his riches.
他被视为一个新富阶层，尽管他拥有财富，但却缺乏 refinement。
C2 noun /ˈpɑr.bəl/

Parbal

尖瓜
Meaning
A green vegetable also known as pointed gourd, commonly used in South Asian cuisine
Example
Mother prepared parbal curry with fish.
母亲做了带鱼的尖瓜咖喱。
C2 noun /ˈpraɪəri/

priory

修道院
Meaning
a small monastery or convent governed by a prior or prioress
Example
The old priory was converted into a museum.
那个古老的修道院被改造成了博物馆。
C2 adjective /ˈpɛndjʊləs/

pendulous

幸福
Meaning
hanging down loosely; drooping
Example
The pendulous fruit weighed down the branch.
她收到奖项时，无法隐藏她的幸福。
C2 verb /ˈpɛtɪˌfɒɡ/

pettifog

争论琐碎的事情
Meaning
to argue or quibble over trivial matters; to engage in petty, dishonest practices
Example
The lawyer was accused of trying to pettifog instead of addressing the real issue.
律师被指控试图争论琐碎的事情，而不是解决真正的问题。
C2 noun /ˈplɛdʒɔːr/

pledgeor

担保人
Meaning
a person who gives or offers a pledge or security
Example
The bank accepted the jewelry from the pledgeor as collateral for the loan.
银行接受了担保人提供的珠宝作为贷款的担保。
C2 noun /pɪθ/

pith

要点，精髓
Meaning
the essential or central part of something
Example
The pith of his argument was that honesty matters most.
他论点的要点是诚实最为重要。
C2 adverb /ˌpɛlˈmɛl/

pell-mell

杂乱无章
Meaning
In a confused, rushed, or disorderly manner.
Example
The children ran pell-mell through the playground.
孩子们在游乐场里杂乱无章地奔跑。
C2 noun /ˌpɒlɪˈhiːdrən/

polyhedron

具有平面多边形面的固体
Meaning
a solid object with flat polygonal faces, straight edges, and vertices
Example
The mathematician studied a complex polyhedron model.
数学家研究了一个复杂的多面体模型。
C2 noun /ˌpraɪmoʊˈdʒɛnɪtʃər/

primogeniture

长子继承权
Meaning
The right of the firstborn child to inherit the family estate or title.
Example
Under primogeniture, the eldest son inherited the entire estate.
在长子继承制下，长子继承了整个家族产业。
C2 adjective /ˈpʌkɪʃ/

puckish

顽皮
Meaning
playfully mischievous
Example
The child gave a puckish grin before hiding the toy.
孩子在藏玩具之前露出了顽皮的笑容。
C2 verb /pɑːrtʃ/

parch

使干燥
Meaning
to make something extremely dry, especially by exposure to heat
Example
The scorching sun began to parch the fields.
炙热的太阳开始把田地弄干。
C2 verb /priːˈfɪɡjər/

prefigure

预示
Meaning
to represent, show, or foreshadow something in advance
Example
The economic reforms prefigure major social changes.
经济改革预示着重大社会变革。
C2 noun /ˈpærəpɛt/

parapet

防护墙
Meaning
A low protective wall along the edge of a roof, balcony, or bridge.
Example
The soldier hid behind the parapet for protection.
士兵躲在防护墙后面以保障安全。
C2 noun /ˈplænɪsfɪr/

planisphere

星图仪
Meaning
a rotating star chart used to display the visible stars for any time and date
Example
The astronomer used a planisphere to identify the constellations.
天文学家使用星图仪来识别星座。
C2 noun /prɪˈhɛnʃən/

prehension

抓握的动作; 抓住某物的能力
Meaning
the act of grasping or seizing; the ability to take hold of something
Example
Therapists assessed the patient's prehension during hand therapy.
治疗师在手部治疗中评估了患者的抓握能力。
C2 noun /ˈpiːən/

paean

颂歌
Meaning
A song or piece of writing expressing great praise or triumph.
Example
The article was a paean to the beauty of nature.
这篇文章是对大自然美丽的颂歌。
C2 verb /ˈpʌkər/

pucker

Meaning
to tighten or contract into small folds or wrinkles
Example
She puckered her lips before kissing the child.
C2 adverb /ˈprɒksɪmətli/

proximately

附近
Meaning
In a near or close manner; nearly.
Example
The village lies proximately to the river.
村庄位于河流附近。
C2 noun, verb /ˈpɑːrli/

parley

谈判
Meaning
a discussion between opposing sides, especially to negotiate terms
Example
The generals met to parley over the terms of surrender.
将军们会面商讨投降的条件。
C2 adjective /ˈpjuːɪsənt/

puissant

强大的
Meaning
having great power or influence; mighty
Example
The king was a puissant ruler whose word was law.
国王是一个强大的统治者，他的话就是法律。
C2 noun /ˈpɜr.fɪ.di/

Perfidy

背叛
Meaning
deliberate breach of faith or trust; treachery; betrayal of trust
Example
His perfidy shocked all who had trusted him.
他的背叛震惊了所有信任他的人。
C2 noun /pʌɡˈnæsɪti/

pugnacity

好斗
Meaning
A natural disposition to be combative or aggressive.
Example
The coach admired the player's pugnacity on the field.
教练欣赏球员在场上的好斗精神。
C2 adjective /ˈprɛʃənt/ or /ˈpriːʃənt/

prescient

先知的
Meaning
having or showing knowledge of events before they take place
Example
The prescient investor sold his shares just before the market crashed.
那位先知的投资者在市场崩盘之前卖掉了他的股票。
C2 noun /prɪˈpɒndərəns/

preponderance

优势
Meaning
The quality or fact of being greater in number, quantity, or importance.
Example
There was a preponderance of evidence against the defendant.
对被告有明显的证据优势。
C2 noun /ˈpɜːrsənɪdʒ/

personage

重要人物
Meaning
an important or famous person
Example
He is considered a great personage in the world of literature.
他被认为是文学界的伟大人物。
C2 verb /pɜːrl/

purl

发出低语声地流动
Meaning
To knit with a purl stitch; to flow with a murmuring sound (as a stream).
Example
The brook purled softly through the meadow.
小溪轻轻地流过草地。
C2 noun /ˈfaɪləm/

phylum

生物分类中的主要类别，高于类，低于界
Meaning
a primary category in the biological classification of organisms, above class and below kingdom
Example
Humans belong to the phylum Chordata.
人类属于脊索动物门。
C2 noun /pəˈnʌmbrə/

penumbra

部分阴影
Meaning
a partially shaded area around the shadow of an object, especially during an eclipse
Example
The moon’s penumbra created a dim shadow over the Earth.
月亮的阴影带在地球上创造了一个微弱的阴影。
C2 noun /ˈpɛdənt/

pedant

书呆子
Meaning
A person who is excessively concerned with minor details or rules, often in a showy way.
Example
The professor was criticized as a pedant who focused too much on trivial details.
教授被批评为一个书呆子，他过于关注微不足道的细节。
C2 noun /ˈpoʊtənˌteɪt/

potentate

君主
Meaning
A monarch or ruler, especially one with absolute power.
Example
The ancient land was ruled by a powerful potentate.
古老的土地由一个强大的君主统治。
C2 noun /ˈpjuː.pɪ.lɪdʒ/

pupilage

学徒状态
Meaning
The state of being a pupil or under instruction.
Example
During his pupilage, he studied law under a senior barrister.
在他的学徒状态期间，他在一位资深律师的指导下学习了法律。
C2 adjective /prɪˈpɒndərənt/

preponderant

主要的
Meaning
Having superior weight, force, influence, or importance.
Example
The preponderant influence of the media shapes public opinion.
媒体的主要影响塑造了公众舆论。
C2 noun /ˈplɛdʒiː/

pledgee

被作为担保而给与某物的人
Meaning
a person to whom something is pledged or given as security
Example
The bank is the pledgee of the collateral until the loan is repaid.
银行是担保品的债权人，直到贷款偿还为止。
C2 noun /ˌfɪzɪˈɑːkrəsi/

physiocracy

地权主义
Meaning
an economic theory that land and its natural products are the source of wealth
Example
Physiocracy emphasized the importance of agriculture in national wealth.
地权主义强调农业在国家财富中的重要性。
C2 adjective /ˌpɛntəˈveɪlənt/

pentavalent

五价
Meaning
Having a valence of five, especially in chemistry.
Example
Phosphorus can exist in a pentavalent state.
磷可以以五价状态存在。
C2 noun /ˌpærəˈnɔɪæk/

paranoiac

偏执的人
Meaning
A person who suffers from paranoia or exhibits extreme, irrational distrust and suspicion.
Example
The paranoiac refused to leave his house, fearing everyone was against him.
这个偏执的人拒绝离开家，因为他害怕每个人都反对他。
C2 adjective /prɪˈskrɪptɪbəl/

prescriptible

可规定的
Meaning
Capable of being prescribed or laid down as a rule or directive.
Example
Certain regulations are prescriptible under the law.
某些规定在法律下是可以规定的。
C2 verb /prɒɡˈnɒstɪkeɪt/

prognosticate

预测
Meaning
To foretell or predict future events, especially based on current signs.
Example
Experts attempted to prognosticate the outcome of the election.
专家们尝试预测选举结果。
C2 noun /ˈpɛtjʊləns/

petulance

暴躁
Meaning
The quality of being childishly sulky or bad-tempered.
Example
His petulance during the meeting annoyed everyone.
他在会议中的佩图兰斯让所有人都烦恼。
C2 noun ˌpɜː.tɪˈnæs.ɪ.ti

pertinacity

坚定的决心与坚持不懈
Meaning
Firm determination and persistence in achieving something.
Example
His pertinacity in achieving his goals was inspiring.
他在实现目标时的坚定决心令人鼓舞。
C2 verb /pɔːrˈtɛnd/

portend

预示
Meaning
To be a sign or warning that something, especially something bad, is going to happen.
Example
Dark clouds portend a storm.
暗云预示着暴风雨。
C2 verb /pəˈræmbjʊˌleɪt/

perambulate

漫步
Meaning
To walk through or travel around, especially for leisure.
Example
They perambulated the old town, enjoying the sights.
他们在古城漫步，享受着美丽的景色。
C2 noun /ˈpoʊ.ɪˌtæs.tər/

poetaster

一个劣质或琐碎的诗人
Meaning
an inferior or trivial poet
Example
He was mocked as a poetaster by the literary critics.
他被文学评论家当作诗人废物嘲笑。
C2 noun /ˈpɔːrfəri/

porphyry

一种硬的火成岩
Meaning
A hard igneous rock containing crystals, often used for decorative or building purposes.
Example
The ancient Romans used porphyry to make columns and statues.
古罗马人使用波斐里石制作柱子和雕像。
C2 noun /pæˈstiːʃ/

pastiche

模仿作品
Meaning
a work of art, literature, or music that imitates the style of another artist, period, or genre
Example
The film was a clever pastiche of 1950s detective movies.
这部电影是1950年代侦探电影的巧妙模仿。
C2 adjective /ˈpʌdʒi/

pudgy

圆胖
Meaning
slightly fat or chubby in a way that is often cute
Example
The baby had pudgy cheeks that everyone adored.
这个宝宝有圆胖的脸颊，大家都很喜欢。
C2 noun /ˌproʊɪˈbɪʃənɪst/

prohibitionist

禁酒主义者
Meaning
A person who supports or advocates prohibition, especially of alcohol.
Example
The prohibitionist campaigned against the sale of liquor in the town.
禁酒主义者在城里反对酒类销售的运动。
C2 noun /ˈplætɪtjuːd/

platitude

陈词滥调，空话
Meaning
a remark or statement that is overused and unoriginal
Example
He kept repeating the same platitudes during the speech.
他在演讲中不断重复相同的陈词滥调。
C2 noun /ˌsaɪ.kəʊˈɡræf.ɪks/

Psychographics

根据人们的态度、愿望和其他心理标准对人进行研究和分类
Meaning
The study and classification of people according to their attitudes, aspirations, and other psychological criteria.
Example
Psychographics reveal consumer buying motives.
心理图谱揭示了消费者购买动机。
C2 noun /ˈpɛrɪstaɪl/

peristyle

由柱子环绕的走廊
Meaning
A continuous porch formed by a row of columns surrounding the perimeter of a building or courtyard.
Example
The Roman villa featured a beautiful peristyle garden.
罗马别墅里有一个美丽的圆柱廊花园。
C2 noun /ˌpɛkjʊˈleɪʃən/

peculation

挪用公款
Meaning
The act of embezzling or stealing money, especially from public funds.
Example
The minister resigned after being accused of peculation.
部长在被指控参与挪用公款后辞职。
C2 noun /ˌfəʊ.təʊ.sen.sɪˈtɪv.ɪ.ti/

photosensitivity

光敏感性
Meaning
Sensitivity to light, especially abnormal sensitivity that may cause discomfort or damage.
Example
Overrubbing can increase photosensitivity.
过度摩擦可能增加光敏感性。
C2 adjective /prəˈhɪbɪtɔːri/

prohibitory

禁止的
Meaning
Serving or tending to prohibit or forbid.
Example
The prohibitory laws were strictly enforced in the region.
禁止性的法律在该地区严格执行。
C2 adjective /ˌpærəˈdɪɡmətɪk/

paradigmatic

典范的
Meaning
Serving as a typical example or model of something.
Example
Her success story is paradigmatic of the opportunities education can provide.
她的成功故事是教育可以提供的机会的典范。
C2 verb /ˈprɒsəˌlaɪtaɪz/

proselytize

试图使某人改信
Meaning
To try to persuade someone to convert to a different belief or religion.
Example
They tried to proselytize the villagers with their new ideas.
他们试图用他们的新思想来传教村民。
C2 verb /prəˈroʊɡ/

prorogue

暂停会议
Meaning
to discontinue a session of a parliament or assembly without dissolving it
Example
The president decided to prorogue parliament until the crisis was resolved.
总统决定暂停议会，直到危机得到解决。
C2 adjective /flɛgˈmæt.ɪk/

phlegmatic

冷静的
Meaning
having an unemotional and stolidly calm disposition
Example
Despite the chaos, he remained phlegmatic and composed.
尽管混乱，他依然保持冷静和平静。
C2 noun /ˈpɜːrljuː/

purlieu

周边区域
Meaning
The area near or surrounding a place; an outlying or neighboring district.
Example
They spent the afternoon exploring the purlieus of the ancient city.
他们在探索古城的普尔柳地区度过了下午。
C2 adjective /ˌpɪkəˈjuːn/

picayune

微不足道的, 琐碎的
Meaning
of little value or importance; trivial
Example
He complained about the picayune details of the contract.
他抱怨合同中的琐碎细节。
C2 noun /pəˈtruːn/

poltroon

懦夫
Meaning
a cowardly person
Example
He acted like a poltroon during the crisis.
他在危机中像个懦夫一样表现。
C2 adjective /njuːˈmætɪk/

pneumatic

气动的
Meaning
operated by air or gas under pressure
Example
The factory uses pneumatic tools for assembly.
工厂使用气动工具进行组装。
C2 adjective /ˈpɪd.lɪŋ/

Piddling

微不足道; 琐碎; 小数额
Meaning
trivial; insignificant; small in amount
Example
He was annoyed by the piddling amount of money he received.
他对他收到的微不足道的金额感到烦恼。
C2 noun/adjective /prɪˈsɪpɪtənt/

precipitant

沉淀剂
Meaning
As a noun: a substance that causes a substance to be deposited from a solution; as an adjective: acting hastily or impulsively.
Example
The chemist added a precipitant to the solution to observe the reaction.
化学家向溶液中加入了沉淀剂，以观察反应。
C2 adjective /paɪd/

pied

花色的
Meaning
having two or more different colors, typically in blotches
Example
The pied cat had black and white patches all over its body.
这只斑猫身上有黑白色的斑点。
C2 adjective /prɪˈzʌmptɪv/

presumptive

推定的
Meaning
Based on probability or assumption rather than proof.
Example
She is the presumptive nominee for the party.
她是该党的推定候选人。
C2 adjective /ˌpɑːrsɪˈmoʊniəs/

parsimonious

吝啬
Meaning
unwilling to spend money or use resources; stingy
Example
The company was too parsimonious to invest in better equipment.
公司太吝啬，无法投资更好的设备。
C2 noun /ˈpɛdɪmənt/

pediment

三角山墙
Meaning
a triangular gable found above the horizontal structure of a building, often in classical architecture
Example
The ancient temple had a pediment decorated with sculptures.
古老的寺庙有一个装饰着雕塑的山墙。
C2 noun /prəˈtɛktərət/

protectorate

保护国
Meaning
A state that is controlled and protected by another.
Example
The small country became a protectorate of the empire.
这个小国成为了帝国的保护国。
C2 adjective /prəˈpʌlsɪv/

propulsive

推进的
Meaning
Having the power to drive or push something forward.
Example
The propulsive force of the rocket lifted it off the ground.
火箭的推进力将它从地面抬起。
C2 noun /ˌfɑːrməkəˈpiːə/

pharmacopoeia

药典
Meaning
An official book listing medicinal drugs, their effects, and directions for use.
Example
The doctor referred to the pharmacopoeia to check the drug's proper dosage.
医生查阅了药典，以核对药物的正确剂量。
C2 noun /pʌntʃ ˈfoʊrən/

Panch Phoron

五香粉
Meaning
a Bengali spice blend containing five whole spices: cumin, fennel, fenugreek, nigella, and mustard seeds
Example
The aroma filled the kitchen when she heated panch phoron in oil.
当她在油中加热五香粉时，香气充满了厨房。
C2 noun /pɜːrtʃt raɪs/

Perched rice

膨化米
Meaning
puffed rice; rice that has been heated and puffed into light, crispy grains
Example
I enjoy eating puffed rice as a healthy snack.
我喜欢把膨化米当作健康的小吃。
C2 adjective /ˌpɛnɪˈtɛnʃəl/

penitential

忏悔的
Meaning
Relating to or expressing penitence or penance.
Example
The priest delivered a penitential sermon on forgiveness.
牧师讲了关于宽恕的忏悔讲道。
C2 adjective /ˈprɪɡɪʃ/

priggish

自以为是的道德主义者
Meaning
self-righteously moralistic and superior
Example
He came across as priggish when correcting everyone's manners.
当他纠正每个人的行为时，他显得很自以为是的道德主义者。
C2 verb /ˈpɒntɪfɪkeɪt/

pontificate

自负或武断地讲话或行动；担任教皇职务
Meaning
to speak or act in a pompous or dogmatic way; to officiate as a pontiff
Example
He pontificated on the importance of education for over an hour.
他在一个小时内讲述了教育的重要性。
C2 noun /fɪˈlæt.əl.i/

philately

邮票收藏学
Meaning
the collection and study of postage stamps
Example
Philately is a hobby enjoyed by people of all ages.
邮票收藏学是一项各年龄段人群都喜爱的爱好。
C2 adjective /pəˈnjʊəriəs/

penurious

极度贫穷
Meaning
extremely poor; poverty-stricken; miserly
Example
The penurious family struggled to buy food.
那个极度贫穷的家庭艰难地购买食物。
C2 noun /fɪˈlæt.əl.ɪst/

philatelist

集邮家
Meaning
a person who collects or studies postage stamps
Example
The philatelist spent years building a rare stamp collection.
这位集邮家花了多年时间建立了一个稀有的邮票收藏。
C2 verb /ˈpɜː.fə.reɪt/

perforate

穿孔
Meaning
to make a hole or holes through something
Example
The machine can perforate sheets of paper for easy tearing.
机器可以穿孔纸张以便于撕裂。
C2 verb /pərˈtɪkjələrˌaɪz/

particularize

具体说明
Meaning
to mention or describe something in detail
Example
The witness was asked to particularize the events of that night.
证人被要求详细叙述那个夜晚的事件。