propeller
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C1 noun /prəˈpɛlər/

propeller

螺旋桨
Meaning
A mechanical device with blades that rotates to drive a ship, aircraft, or other vehicle forward.
Example
The airplane’s propeller cut through the air with great speed.
飞机的螺旋桨以极快的速度切割空气。
C1 noun /pərˈkʌʃən/

percussion

打击乐器
Meaning
Musical instruments that are played by striking, shaking, or scraping, such as drums or cymbals.
Example
The percussion section added rhythm and energy to the orchestra.
打击乐部分为管弦乐队增添了节奏和能量。
C1 verb ˈplʌmɪtɪŋ

plummeting

急剧下降
Meaning
Falling or dropping suddenly and steeply; decreasing rapidly
Example
The fertility rate in Bangladesh is plummeting.
孟加拉国的生育率急剧下降。
C1 adjective /ˈpjuː.ni/

puny

虚弱的
Meaning
Small, weak, or insignificant.
Example
He felt puny compared to his stronger classmates.
与他更强大的同学相比，他感觉自己很虚弱。
C1 noun, adjective /ˈpɑːrtɪzən/

partisan

党派支持者
Meaning
A strong supporter of a party, cause, or person; showing biased allegiance.
Example
The debate quickly turned partisan, with each side defending their own agenda.
辩论迅速变得党派化，每一方都在捍卫自己的议程。
C1 noun /ˌpeɪ.li.ɒnˈtɒl.ə.dʒi/

paleontology

古生物学
Meaning
the branch of science concerned with fossil animals and plants
Example
She decided to study paleontology at university.
她决定在大学学习古生物学。
C1 noun prəˈkjʊrmənt

procurement

采购
Meaning
The action of obtaining or procuring something, especially for official purposes.
Example
The procurement of modern equipment has improved research accuracy.
现代设备的采购提高了研究准确性。
C1 noun ˈprəʊses stəˈbɪlɪti

process stability

过程稳定性
Meaning
The consistency and steadiness of biological or functional processes
Example
Cold air ensures process stability in plants.
冷空气确保植物的过程稳定性。
C1 adjective /ˈprɛdəˌtɔri/

predatory

掠食者/剥削者
Meaning
Relating to animals that prey on others; exploiting or victimizing others for personal gain.
Example
The predatory bird swooped down on its prey.
掠食性鸟类扑向它的猎物。
C1 adjective /ˈplaɪənt/

pliant

灵活的，容易受影响或适应的
Meaning
flexible; easily influenced or adaptable
Example
She has a pliant personality that adapts well to new situations.
她有一个灵活的个性，能够很好地适应新环境。
C1 noun /ˈpæd.ək/

paddock

马或其他动物的围场
Meaning
a small enclosed field where horses or other animals are kept
Example
The horses were grazing in the paddock.
马群在围场里吃草。
C1 adjective /pəˈmɪs.ɪv/

permissive

宽容的
Meaning
Allowing or characterized by great or excessive freedom of behavior; very lenient or indulgent.
Example
Permissive parenting can sometimes lead to a lack of discipline in children.
宽容的育儿方式有时可能导致孩子缺乏纪律。
C1 noun prɪˌsɪp.ɪˈteɪ.ʃən

precipitation

降水
Meaning
Rain, snow, sleet, or hail that falls to or condenses on the ground.
Example
Annual precipitation levels are decreasing.
年度降水量正在减少。
C1 adjective /ˈpoʊləraɪzd/

polarized

极化的
Meaning
divided into two sharply contrasting groups or opinions
Example
The debate polarized the community on the issue of climate change.
辩论使社区在气候变化问题上分裂。
C1 adjective /ˈperɪɡrɪn/

Peregrine

漫游的; 迁徙的; 旅行的
Meaning
wandering; traveling; migratory
Example
The peregrine falcon is known for its incredible speed.
游隼因其不可思议的速度而闻名。
C1 noun /pəˈræl.ə.sɪs/

Paralysis

瘫痪
Meaning
the loss of the ability to move part or all of the body; complete inability to act or function
Example
The accident left him with paralysis in his legs.
事故使他双腿瘫痪。
C1 noun prəˈpɛn.sə.ti

propensity

倾向或自然趋势
Meaning
An inclination or natural tendency to behave in a particular way.
Example
He has a propensity for taking risks in business.
他有冒险精神，在商业中倾向于冒险。
C1 verb /ˈpɛtrɪfaɪ/

petrify

石化
Meaning
to make someone so frightened that they are unable to move or think; to turn into stone
Example
The loud noise petrified the little child.
大声的噪音让孩子石化了。
C1 verb /piːv/

peeve

烦扰
Meaning
To annoy or irritate someone.
Example
His constant interruptions really peeve me.
他的不断打断真的让我很烦。
C1 adjective /fəˈnɛtɪk/

phonetic

语音的
Meaning
relating to the sounds of speech or pronunciation
Example
The teacher taught the students the phonetic spelling of difficult words.
老师教学生们困难单词的音标拼写。
C1 verb /ˈpɛdəl/

peddle

推销
Meaning
To sell goods, often by going from place to place; sometimes used negatively to mean promoting an idea or product in a pushy way.
Example
Street vendors peddle handmade jewelry to tourists.
街头小贩向游客出售手工珠宝。
C1 verb pɚˈpɛtʃ.u.eɪt

perpetuate

保持某事持续运行或长时间维持它
Meaning
To keep something continuously running or maintain it for a long time.
Example
The media can sometimes perpetuate harmful stereotypes.
媒体有时会延续有害的刻板印象。
C1 adjective /ˈpærəmaʊnt/

paramount

至关重要
Meaning
more important than anything else; supreme
Example
Safety is of paramount importance in this factory.
在这家工厂里，安全至关重要。
C1 noun /pɪˈtaɪə/

Pitaya / Dragon fruit

火龙果
Meaning
a tropical fruit with bright pink or red skin and white flesh speckled with black seeds
Example
The pitaya has a mild, sweet flavor and a unique appearance.
火龙果味道温和、甜美，外形独特。
C1 noun /ˈpiː.kɒk ˈflaʊ.ər/

Peacock flower

孔雀花
Meaning
a tropical tree with bright orange and red flowers that resemble a peacock's tail
Example
The peacock flower tree blooms with stunning orange flowers in summer.
孔雀花树在夏季开着令人惊叹的橙色花朵。
C1 adjective/verb /ˈprɒstreɪt/

prostrate

俯卧
Meaning
lying stretched out on the ground with one's face downward, often as a sign of submission or exhaustion
Example
He lay prostrate on the ground after the long battle.
他在长时间的战斗后趴倒在地。
C1 noun,verb /pleɪt/

plait

辫子
Meaning
a braid of hair or straw; to braid
Example
She decided to plait her hair before the party.
她决定在派对前编织她的头发。
C1 verb /prəˈfes/

profess

宣称
Meaning
to declare or claim openly; to state one's belief
Example
He professes his love for classical music.
他宣称自己热爱古典音乐。
C1 noun /ˈpæl.ə.tə.bəl miːt/

Palatable meat

美味的肉类
Meaning
Meat that is pleasant to taste; appetizing meat dish
Example
The chef prepared palatable meat dishes for the dinner party.
厨师为晚宴准备了美味的肉类菜肴。
C1 verb /ˈpɜːrpɔːrt/

purport

声称
Meaning
to claim or profess something, often falsely
Example
The document purports to be an official government report.
该文件声称是官方政府报告。
C1 noun /pɒˈstɛrɪti/

posterity

后代
Meaning
All future generations of people.
Example
The monument was built for the benefit of posterity.
这座纪念碑是为后代的利益而建造的。
C1 verb /pərˈplɛks/

perplex

困惑 / 迷惑
Meaning
To confuse or puzzle someone.
Example
The complex instructions perplexed the students.
复杂的指示使学生感到困惑。
C1 adjective /ˈpɔɪ.njənt/

poignant

动人, 深刻
Meaning
evoking a keen sense of sadness or regret; deeply touching
Example
The movie's ending was so poignant that many in the audience were moved to tears.
这部电影的结尾如此动人，以至于许多观众都感动得流泪。
C1 noun /prɪˈrɒɡətɪv/

prerogative

特权
Meaning
a special right or privilege exclusive to a particular person or group
Example
It is the manager’s prerogative to make the final decision.
这是经理做出最终决定的特权。
C1 adjective /pəˈnʌltɪmət/

penultimate

倒数第二
Meaning
second to the last in a sequence or series
Example
She finished the penultimate chapter before going to sleep.
她在睡觉前完成了倒数第二章。
C1 verb /plɒd/

plod

缓慢而坚定地工作
Meaning
to work slowly and steadily, often with effort or difficulty
Example
He plodded through his homework despite feeling tired.
尽管他感到疲倦，他还是慢慢地完成了作业。
C1 noun /ˈpɛrəntɪdʒ/

parentage

家族背景
Meaning
The identity and origins of one's parents; descent or lineage.
Example
Her noble parentage gave her access to the royal court.
她的高贵家族背景使她有机会进入皇宫。
C1 noun /ˈpɛdəstəl/

pedestal

基座 / 台座
Meaning
the base or support on which a statue or object stands
Example
The statue was placed on a marble pedestal.
雕像被放置在大理石基座上。
C1 noun /ˈpɔːpər/

pauper

乞丐
Meaning
A very poor person.
Example
The pauper begged for food on the street corner.
乞丐在街角乞讨食物。
C1 noun /ˈpæn.θi.ən/

pantheon

所有神明，献给所有神明的庙宇
Meaning
All the gods of a religion collectively; a building dedicated to all gods.
Example
The Roman Pantheon is one of the best-preserved ancient temples.
罗马的万神殿是最完好保存的古代神庙之一。
C1 noun /pəˈnæʃ/

panache

与众不同的风格
Meaning
Flamboyant confidence of style or manner; distinctive and stylish elegance.
Example
He delivered his speech with great panache.
他以极大的自信发表了演讲。
C1 noun ˌpɒlɪˈneɪʃən

Pollination

授粉
Meaning
The process by which pollen is transferred from flowers, enabling plant reproduction.
Example
Butterflies play a vital role in pollination.
蝴蝶在授粉过程中起着至关重要的作用。
C1 adjective /ˈpiːs.ə.bəl/

Peaceable

和平的; 倾向于避免冲突
Meaning
peaceful; inclined to avoid conflict
Example
The peaceable protest ended without any violence.
和平抗议没有暴力结束。
C1 adjective /pəˈrɛniəl/

perennial

常青
Meaning
lasting or existing for a long time, or recurring continually
Example
Climate change is a perennial concern for scientists.
气候变化是科学家的一个长期关注问题。
C1 noun /pɪˌdɛs.tri.ə.naɪˈzeɪ.ʃən/

pedestrianization

行人化
Meaning
Making areas pedestrian-friendly, closing any area to vehicle traffic and making it open only for pedestrians.
Example
The pedestrianization of city centers reduces pollution.
城市中心的行人化减少了污染。
C1 noun /ˈpoʊʃən/

potion

药水
Meaning
a liquid with healing, magical, or poisonous properties
Example
The witch gave the hero a healing potion.
女巫给了英雄一个治疗药水。
C1 noun /ˌpɜːrspəˈreɪʃn/

perspiration

出汗
Meaning
The process of sweating.
Example
Heavy exercise causes perspiration.
剧烈运动会引起出汗。
C1 noun ˈpær.ə.daɪm

paradigm

范式
Meaning
A typical example or pattern of something; a model or framework for understanding or approaching something.
Example
The paradigm of education is changing with digital technology.
教育的范式正在随着数字技术而改变。
C1 verb /pərˈspaɪər/

perspire

流汗
Meaning
To give out sweat through the pores of the skin as a result of heat, physical exertion, or stress.
Example
He began to perspire after running for 10 minutes.
他跑了10分钟后开始流汗。
C1 adjective /ˈpen.ɪ.ləs/

Penniless

一贫如洗；极度贫穷；完全没有资金
Meaning
having no money; extremely poor; completely without funds
Example
After losing his job, he became penniless.
失业后，他变得一贫如洗。
C1 adjective /ˌpæθəˈlɑːdʒɪkəl/

pathological

病理的, 异常的
Meaning
Relating to disease; extreme or obsessive in a way that is abnormal.
Example
He has a pathological fear of failure.
他对失败有病理性的恐惧。
C1 adjective /ˈplæsɪd/

placid

平静的，安宁的
Meaning
calm and peaceful, not easily disturbed
Example
She had a placid expression despite the chaos around her.
尽管周围一片混乱，她的表情依然平静。
C1 verb /pɛk/

Peck

啄
Meaning
To strike or bite something with a beak; to eat in small bites.
Example
The hen began to peck at the grains scattered on the ground.
母鸡开始啄地面上散落的谷物。
C1 verb /ˈpoʊ.lə.raɪz/

polarize

极化
Meaning
to divide or cause to divide into two sharply contrasting groups or sets of opinions or beliefs
Example
The controversial decision polarized public opinion.
有争议的决定使公众意见分成了两个对立的阵营。
C1 noun /pɛnˈtæθlɒn/

pentathlon

五项全能
Meaning
An athletic contest featuring five different events.
Example
She trained hard to compete in the modern pentathlon.
她为参加现代五项全能而努力训练。
C1 verb /ˈpɑːzɪt/

posit

Meaning
To assume or suggest something as a fact or basis for reasoning.
Example
The scientist posited a new theory to explain the phenomenon.
C1 adjective /prəˈfeɪn/

profane

亵渎的，不敬的
Meaning
showing disrespect or contempt for sacred things; irreverent or vulgar
Example
His jokes were considered too profane for the ceremony.
他的笑话被认为是太亵渎仪式了。
C1 verb /praʊl/

prowl

悄悄走动（猎取或寻找）
Meaning
To move around quietly and secretly, especially while hunting or searching.
Example
The cat prowled around the garden at night.
猫在夜间悄悄地绕着花园走。
C1 noun /ˈpɒpjʊlɪst/

populist

民粹主义领导人
Meaning
A politician or person who seeks to appeal to ordinary people who feel their concerns are ignored by elites.
Example
The populist leader promised to put the needs of common citizens first.
民粹主义领导人承诺将普通公民的需求放在首位。
C1 noun /ˈpɜːʃən/

Persian

伊朗人或说波斯语的人
Meaning
a native or inhabitant of Iran; the language spoken in Iran (Farsi)
Example
The Persian language has a rich literary history.
波斯语有着丰富的文学历史。
C1 adjective /ˈpəʊtəbl/

potable

可饮用的
Meaning
safe to drink; drinkable
Example
The villagers did not have access to potable water.
村民没有水源可以饮用。
C1 adjective /ˈpriːmə/

prima

主要的, 卓越的
Meaning
first or most important; excellent
Example
She was treated as the prima ballerina of the troupe.
她被视为舞蹈团的首席舞者。
C1 adjective /pæˈseɪ/

passe

过时的; 过时
Meaning
no longer fashionable or current; out of date
Example
Some trends from last decade feel utterly passé now.
过去十年的一些趋势现在看起来完全过时了。
C1 noun prɪˈdɪk.ə.mənt

predicament

困境
Meaning
A difficult, unpleasant, or embarrassing situation.
Example
Losing both jobs put him in a financial predicament.
失去两份工作让他陷入了财务困境。
C1 noun /ˈsuːdənɪm/

pseudonym

笔名
Meaning
a fictitious name used by an author instead of their real name
Example
Mark Twain was the pseudonym of Samuel Clemens.
马克·吐温是塞缪尔·克莱门斯的笔名。
C1 noun /ˈpoʊtənsi/

potency

效能
Meaning
The power or ability of something to affect or influence; strength or effectiveness.
Example
The potency of the new medicine amazed the doctors.
新药的效能令医生们惊讶。
C1 noun /ˈpen.əns/

Penance

忏悔; 为做错事所接受的惩罚
Meaning
punishment that you accept for doing something wrong; an act of showing that you are sorry for sin
Example
The monk performed penance for his past mistakes.
和尚因他的过去错误而进行忏悔。
C1 verb /præns/

prance

高傲地走
Meaning
To move with high, springy steps, often to show off or attract attention.
Example
The horse pranced around the field gracefully.
那匹马骄傲地走过了田野。
C1 noun /ˌfɪziˈɑːlədʒi/

physiology

生理学
Meaning
the scientific study of the functions and mechanisms in a living system
Example
She is majoring in human physiology at the university.
她在大学主修人体生理学。
C1 noun /ˌpɜːrmjuˈteɪʃən/

permutation

置换
Meaning
An arrangement or reordering of elements, often in mathematics or logic.
Example
The puzzle can be solved by trying all possible permutations of the tiles.
通过尝试所有可能的拼图块置换，可以解决这个难题。
C1 noun /peɪˈiː/

payee

收款人
Meaning
A person to whom money is paid or is to be paid.
Example
The payee must sign the check before cashing it.
收款人在兑现支票前必须签名。
C1 noun prəˈtɛk.ʃə.nɪ.zəm

protectionism

保护主义
Meaning
The theory or practice of shielding a country's domestic industries from foreign competition by taxing imports.
Example
The government's protectionism helped local businesses grow.
政府的保护主义帮助了本地企业的成长。
C1 adjective /prəˈpɔːrʃənət/

proportionate

成比例的
Meaning
Corresponding in size, degree, or intensity; balanced in relation.
Example
The punishment should be proportionate to the crime.
惩罚应该与犯罪成比例。
C1 noun /ˈpræɡ.mə.tɪ.zəm/

pragmatism

实践主义
Meaning
A practical approach to problems and affairs; dealing with things sensibly and realistically.
Example
His pragmatism helped solve the financial crisis.
他的实践主义帮助解决了金融危机。
C1 verb /per/

pare

削皮
Meaning
to cut away the outer covering or reduce something gradually
Example
She pared the apple before eating it.
她在吃苹果前削了皮。
C1 noun /ˈpræɡmətɪst/

pragmatist

实用主义者
Meaning
A person who deals with things in a practical and realistic way.
Example
He is a true pragmatist who values results over ideals.
他是一个真正的实用主义者，他更看重结果而非理想。
C1 adjective /prɪm/

prim

过于正式或合适
Meaning
stiffly formal and proper in appearance or behavior
Example
She looked prim in her neatly pressed dress.
她穿着精心熨烫的裙子看起来非常端庄。
C1 noun /ˈpærəˌlɛlɪzəm/

parallelism

平行主义
Meaning
The state of being parallel or similar; in literature, the use of components in a sentence that are grammatically the same or similar in construction.
Example
The writer used parallelism to give rhythm to his prose.
作家使用平行主义为他的散文增添了节奏。
C1 adjective /ˌsaɪkəˈpæθɪk/

psychopathic

精神病的
Meaning
Relating to or affected by psychopathy; showing chronic mental disorder with abnormal or violent behavior.
Example
The film portrayed a psychopathic killer with no sense of empathy.
电影描绘了一个没有同情心的精神病杀手。
C1 verb /ˈpɪlɪdʒ/

pillage

洗劫
Meaning
to rob or plunder a place, especially during war
Example
The invading army pillaged the village and took all valuables.
入侵军队洗劫了村庄，拿走了所有贵重物品。
C1 noun /pʌnˈdʒɑː.bi/

Punjabi

旁遮普
Meaning
a traditional long shirt worn in South Asia, typically loose-fitting
Example
He wore a white punjabi for the festival celebration.
他穿着白色的旁遮普参加节日庆典。
C1 noun /ˈpraɪməsi/

primacy

优先权
Meaning
the state of being first in importance or authority
Example
The primacy of education cannot be denied.
教育的优先权不可否认。
C1 noun /prəˈpɛlənt/

propellant

推进剂
Meaning
A substance that drives or pushes something forward, especially fuel in rockets or engines.
Example
The rocket uses a liquid propellant to launch into space.
火箭使用液体推进剂发射进入太空。
C1 noun /ˈpriː.tekst/

Pretext

借口
Meaning
a reason given in justification of a course of action that is not the real reason
Example
He used illness as a pretext to avoid the meeting.
他用生病作为借口来避开会议。
C1 noun /pɔl/

Pall

覆盖在棺材上的布; 一层暗淡的覆盖物，创造出阴沉的氛围
Meaning
a cloth spread over a coffin; a dark covering that creates a gloomy atmosphere
Example
A pall of smoke hung over the burning building.
一层烟雾悬挂在燃烧的建筑物上方。
C1 adjective /ˈpɛnɪtənt/

penitent

懊悔的
Meaning
Feeling or showing sorrow and regret for having done wrong.
Example
She was penitent after shouting at her friend.
她在对她的朋友大喊之后感到懊悔。
C1 noun /ˌpɪɡ.menˈteɪ.ʃən/

pigmentation

色素沉着
Meaning
The natural coloring of animal or plant tissue.
Example
Excessive rubbing can cause pigmentation issues.
过度摩擦可能会导致色素沉着问题。
C1 noun/verb /ˈprɛdɪkət/ (noun), /ˈprɛdɪkeɪt/ (verb)

predicate

谓语 / 以...为基础
Meaning
noun: the part of a sentence that tells something about the subject; verb: to base or establish something on a particular idea
Example
His theory is predicated on sound research.
他的理论是基于可靠的研究。
C1 noun /pəˈlɪɡ.ə.mi/

Polygamy

一夫多妻制
Meaning
the practice of marrying multiple spouses at the same time
Example
Polygamy is illegal in many countries around the world.
一夫多妻制在世界许多国家是非法的。
C1 verb /ˈpɜːrsɪkjuːt/

persecute

幸福
Meaning
to treat someone cruelly or unfairly, especially because of their religion, race, or beliefs
Example
Many people were persecuted for their faith during that time.
当她获得奖项时，她无法隐藏自己的幸福。
C1 noun /ˈpreɪsiː/

precis

摘要
Meaning
A concise summary of a text or speech.
Example
The student submitted a précis of the long article.
学生提交了一篇长文章的摘要。
C1 noun /poʊˈlær.ɪ.ti/

polarity

极性
Meaning
the state of having two opposite or contradictory tendencies, opinions, or aspects
Example
The polarity between the two political parties is growing stronger.
两个政治党派之间的极性越来越强。
C1 adjective /ˈpʌn.dʒənt/

Pungent

刺鼻的
Meaning
sharp; strong-smelling; acrid;
Example
The pungent smell of garlic filled the kitchen.
大蒜刺鼻的气味充满了厨房。
C1 noun /plæsˈtɪsəti/

plasticity

可塑性, 适应能力
Meaning
the quality of being easily shaped or molded; adaptability
Example
The brain's plasticity allows it to adapt after injury.
大脑的可塑性使它在受伤后能够适应。
C1 noun /ˈpɔːrsəlɪn/

porcelain

瓷器
Meaning
A white, hard ceramic material often used for dishes and ornaments.
Example
The museum displayed ancient porcelain vases from China.
博物馆展示了来自中国的古代瓷器花瓶。
C1 adjective /priˈɛmptɪv/

preemptive

预防性
Meaning
Serving or intended to prevent something by taking action first.
Example
The government took preemptive measures to control inflation.
政府采取了预防措施来控制通货膨胀。
C1 noun /ˈpɪl.fər.ɪdʒ/

Pilferage

窃盗（小额盗窃）
Meaning
the theft of small amounts or items, especially from one's workplace
Example
The company installed cameras to prevent pilferage.
公司安装了监控摄像头以防止盗窃。
C1 adjective /ˈpleɪntɪv/

plaintive

悲伤的, 哀求的
Meaning
expressing sadness or sorrow
Example
He raised a plaintive cry for help.
他发出了一个悲伤的求救声。
C1 verb /ˈpærəfreɪz/

paraphrase

幸福
Meaning
To express the meaning of something using different words, often to make it clearer.
Example
The teacher asked the students to paraphrase the poem in their own words.
当她收到奖项时，她无法掩饰自己的幸福。
C1 adjective /ˈpɪt.i.əs/

Piteous

可怜的; 引起同情的
Meaning
deserving pity; arousing compassion
Example
The piteous cries of the injured animal moved everyone to tears.
受伤动物的悲惨叫声让每个人都泪流满面。
C1 noun /pəˈzɛsər/

possessor

所有者
Meaning
A person who owns or holds something.
Example
The possessor of the land built a new house.
土地的所有者建造了一座新房。
C1 noun /ˈpɪn.sərz/

Pincers

钳子
Meaning
a tool made of two curved or hinged pieces of metal used for gripping and pulling things
Example
The chef used pincers to remove the hot pot from the stove.
厨师用钳子把热锅从炉子上取下来。
C1 adjective /ˌpæn.əˈmer.ɪ.kən/

Pan-American

泛美洲的
Meaning
relating to all the countries of North, Central, and South America
Example
The Pan-American Games bring together athletes from across the continent.
泛美洲运动会将整个大陆的运动员汇聚在一起。
C1 adjective /pləˈtɒnɪk/

platonic

柏拉图式
Meaning
relating to a close relationship that is not romantic or sexual
Example
They have a platonic friendship that has lasted for years.
他们有一段柏拉图式的友谊，已经持续了多年。
C1 verb /ˈprɪkəl/

prickle

Meaning
to cause a slight stinging or tingling sensation on the skin
Example
Her skin began to prickle in the cold wind.
C1 adjective /pərˈsweɪdəbl̩/

persuadable

容易说服的
Meaning
capable of being convinced or influenced to do something
Example
She was easily persuadable when it came to trying new foods.
她在尝试新食物时很容易被说服。
C1 adjective /ˈper.ɪ.ləs/

perilous

危险的, 危险的, 不安全的
Meaning
Full of danger or risk; hazardous and threatening.
Example
The explorers took a perilous journey.
探险家们进行了危险的旅行。
C1 verb /proʊˈtruːd/

protrude

突出
Meaning
To stick out or extend beyond a surface.
Example
A nail was protruding from the wooden board.
一根钉子从木板中突出出来。
C1 verb /priːn/

preen

修整
Meaning
To groom or dress oneself with care; to show pride in one's appearance.
Example
She preened in front of the mirror before leaving for the party.
她在镜子前修整自己，然后去派对。
C1 noun /ˌfəʊtəʊˈsɪnθɛtɪk ɪˈfɪʃənsi/

photosynthetic efficiency

光合作用效率
Meaning
The measure of how effectively plants convert light energy into chemical energy through the process of photosynthesis, directly affecting plant growth and crop yield.
Example
Improving photosynthetic efficiency can increase crop yields.
提高光合作用效率可以增加作物产量。
C1 verb pleɪɡd

plagued

困扰
Meaning
Troubled or afflicted persistently by problems or difficulties.
Example
People are plagued by anxiety and depression.
人们受到焦虑和抑郁的困扰。
C1 noun, verb /ˌprɒməˈneɪd/

promenade

散步
Meaning
A leisurely walk or stroll, especially in a public place for pleasure or display.
Example
They went for a promenade along the seaside.
他们在海边散步。
C1 noun /ˈprɒv.ɜːb/

Proverb

幸福
Meaning
a short saying that expresses a general truth or gives advice
Example
The proverb 'Early to bed, early to rise' teaches us about good habits.
当她收到奖项时，她无法掩饰自己的幸福。
C1 noun /pləˈsiːboʊ/

placebo

安慰剂
Meaning
a substance with no therapeutic effect, used as a control in testing new drugs
Example
The patient was given a placebo to compare the effect of the real drug.
患者被给了一个安慰剂，以比较真实药物的效果。
C1 noun /ˈprɛljuːd/

prelude

前奏
Meaning
An action, event, or statement that serves as an introduction to something more important.
Example
The small fight was only a prelude to a bigger conflict.
小争执只是更大冲突的前奏。
C1 adjective /ˈpɛndənt/

pendent

悬挂的
Meaning
hanging down or suspended
Example
The pendent branches touched the ground.
悬挂的树枝触碰了地面。
C1 noun /ˈplæz.mə/

Plasma

血液的液体部分；电离气体；无凝血蛋白的血清
Meaning
the liquid part of blood; ionized gas; blood serum without clotting proteins
Example
Blood plasma contains various proteins and nutrients.
血浆含有各种蛋白质和营养物质。
C1 adjective /ˈpiːvɪʃ/

peevish

易怒的
Meaning
Easily irritated, especially by unimportant things.
Example
The child grew peevish when denied candy.
孩子因没得到糖果而变得易怒。
C1 noun /ˈpɪnəkəl/

pinnacle

顶点
Meaning
the highest point or peak of something, especially of success or achievement
Example
Winning the Nobel Prize was the pinnacle of her career.
赢得诺贝尔奖是她事业的巅峰。
C1 noun /ˌpiːdiˈætrɪks/

pediatrics

儿科学
Meaning
the branch of medicine dealing with the health and medical care of children
Example
She decided to specialize in pediatrics after medical school.
她决定在医学学校后专攻儿科学。
C1 verb /ˈpændər/

pander

迎合, 奉承
Meaning
to indulge or exploit the weaknesses, desires, or immoral tendencies of others
Example
The politician was accused of pandering to voters' fears.
政治家被指控迎合选民的恐惧。