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B2 noun /ˈsɪmbəl/

Symbol

符号
Meaning
a mark or character used as a conventional representation of an object, function, or process
Example
The dove is a symbol of peace.
鸽子是和平的象征。
B2 adjective /slæk/

slack

松弛
Meaning
not tight, firm, or busy; lacking tension or activity
Example
Business is slack during the rainy season.
在雨季生意很清淡。
C2 adjective /sʌbˈdʒeɪsənt/

subjacent

下层的
Meaning
lying immediately beneath; underlying
Example
The geological survey revealed subjacent layers of rock.
地质调查揭示了下层的岩层。
C2 verb /skwɛltʃ/

squelch

Meaning
to make a soft sucking sound, such as when walking on mud; to suppress or silence
Example
His boots squelched in the wet ground.
C1 verb /skɔːrtʃ/

scorch

烧焦
Meaning
to burn the surface of something slightly
Example
The fire scorched the walls of the building.
火焰烧焦了建筑物的墙壁。
B2 noun /skɛtʃ/

sketch

素描
Meaning
a simple, rough drawing or outline
Example
He made a quick sketch of the landscape.
他画了一个快速的风景素描。
A1 adjective /stɪl/

still

静止
Meaning
not moving or making a sound
Example
The water was still, reflecting the sky.
水面静止，反射着天空。
B2 verb /ˈskroʊlɪŋ/

scrolling

滚动
Meaning
Moving through content on a screen by sliding up or down.
Example
Scrolling through feeds wastes a lot of time.
在信息流中滚动浪费了很多时间。
B2 noun speɪs ɪksplɔːˈreɪʃən

space exploration

太空探索
Meaning
The investigation of outer space by means of manned and unmanned spacecraft.
Example
Space exploration has expanded our knowledge of the universe.
太空探索拓展了我们对宇宙的认识。
B2 adverb /səbˈstænʃəli/

substantially

显著
Meaning
to a great extent or degree
Example
The new policy has substantially improved working conditions.
新政策显著改善了工作条件。
C1 noun /ˈskep.tɪ.sɪ.zəm/

skepticism

怀疑主义, 疑虑
Meaning
A skeptical attitude; doubt as to the truth of something.
Example
His skepticism about new technology often makes him resistant to change.
他对新技术的怀疑主义使他常常抗拒改变。
C1 adjective /ˈseɪlaɪn/

Saline

盐水的; 含盐的
Meaning
containing salt; salty; relating to salt water
Example
The saline solution is used for medical treatments.
盐水溶液用于医学治疗。
B2 adverb /ˈsiː.mɪŋ.li/

seemingly

表面上, 看起来平静
Meaning
appearing to be true, but not necessarily so
Example
He was seemingly calm despite the chaos around him.
尽管周围一片混乱，他看起来平静。
C2 noun /sɪˈrɒkoʊ/

sirocco

炎热干燥的风
Meaning
A hot, dry wind blowing from North Africa across the Mediterranean to southern Europe.
Example
The sirocco made the city unbearably hot and dusty.
西罗科让这座城市变得极其炎热和尘土飞扬。
B2 adjective /ˈskɛptɪkəl/

skeptical

怀疑的
Meaning
not easily convinced; having doubts or reservations
Example
She was skeptical about the new plan.
她对新计划持怀疑态度。
B1 adjective /ˈsæt.ɪs.fæk.tər.i/

Satisfactory

令人满意的
Meaning
acceptable; meeting requirements; adequate
Example
The test results were satisfactory.
测试结果令人满意。
C1 noun /ˈsɪmətri/

symmetry

对称
Meaning
the quality of having balanced proportions or identical parts facing each other
Example
The building’s symmetry impressed the visitors.
建筑的对称性给游客留下了深刻的印象。
B2 verb /ˈsmʌɡəl/

smuggle

Meaning
to move goods illegally into or out of a country
Example
The gang tried to smuggle gold across the border.
B2 noun /ˈspætʃ.ʊ.lə/

Spatula

刮刀
Meaning
a kitchen utensil with a flat, flexible blade used for mixing, spreading, or lifting food
Example
I used a spatula to flip the pancakes in the pan.
我用刮刀翻转平底锅里的煎饼。
B1 noun /ˈsɛtʌp/

setup

设置
Meaning
an arrangement of things or the way in which something is organized or prepared
Example
The setup of the event took hours to complete.
事件的设置花了几个小时完成。
B2 noun /səˈnɛərioʊ/

scenario

可能的情境
Meaning
a possible situation or sequence of events
Example
The company prepared for the worst-case scenario.
公司为最坏的情况做了准备。
C1 verb /ˈstæmər/

stammer

结巴
Meaning
To speak with sudden involuntary pauses and a tendency to repeat the initial letters of words.
Example
The nervous student began to stammer during his speech.
紧张的学生在演讲中开始结巴。
B2 noun /ˈspesɪmən/

Specimen

样本; 标本; 例子
Meaning
an individual example of something; a sample collected for scientific study or testing
Example
The scientist collected a blood specimen for analysis.
科学家收集了一份血液标本进行分析。
B1 noun /sɛks/

sex

性别
Meaning
the biological distinction between male and female; sexual activity
Example
He was asked about his sex at the doctor's office.
医生办公室询问了他的性别。
A2 noun /ˈsɪk.nəs/

Sickness

疾病; 病痛
Meaning
the state of being ill; a disease or illness
Example
She took time off work due to sickness.
她因病休假。
B2 noun /spæm/

spam

垃圾邮件
Meaning
unsolicited or unwanted electronic communication, typically in the form of email
Example
My inbox is full of spam emails that I need to delete.
我的收件箱里满是垃圾邮件，我需要删除它们。
C2 adverb /ˌsʌb ˈroʊzə/

sub rosa

秘密地
Meaning
secretly, in confidence, or in private
Example
The deal was made sub rosa to avoid public scrutiny.
交易是在秘密地进行的，以避免公众审查。
A1 noun /suːp/

Soup

汤
Meaning
a liquid food made by boiling meat, vegetables, or other ingredients in water
Example
I had a bowl of chicken soup for lunch.
我午餐吃了一碗鸡汤。
C1 verb /ˈsaɪdˌstɛp/

sidestep

回避
Meaning
To avoid something by stepping aside; to evade a problem or question indirectly.
Example
The politician tried to sidestep the difficult question.
那位政治家试图回避那个棘手的问题。
C1 noun /sɛkt/

sect

教派
Meaning
a subgroup of a larger religious or political group, often with differing beliefs
Example
The group split into different sects due to doctrinal differences.
由于教义上的差异，该小组分裂成了不同的教派。
A2 noun /sɔːlt/

Salt

盐
Meaning
white crystalline substance used for seasoning food; sodium chloride
Example
Please add some salt to the soup to enhance its flavor.
请在汤里再加一些盐以提升风味。
C1 noun /ʃæk/

Shack

小屋
Meaning
a small, crudely built dwelling; a poorly constructed building
Example
The fisherman lived in a small shack near the beach.
渔夫住在靠近海滩的小屋里。
C1 noun /stɪˈlɛtoʊ/

stiletto

细高跟鞋 / 匕首
Meaning
A small, thin, high-heeled shoe or a dagger with a slender blade.
Example
She wore elegant stiletto heels to the party.
她穿着优雅的细高跟鞋去参加派对。
C1 /skwɒt/

squat

蹲下
Meaning
to crouch or sit with knees bent and body close to the ground
Example
He squatted down to tie his shoes.
他蹲下来系鞋带。
B2 verb /səʊ/

sew

幸福
Meaning
to join pieces of fabric or material together using a needle and thread
Example
She learned to sew her own clothes at an early age.
她在获得奖项时无法掩饰她的快乐。
C2 adjective /ˈsæŋɡwɪˌnɛri/

sanguinary

血腥的
Meaning
Involving or causing much bloodshed; bloodthirsty.
Example
The battle was one of the most sanguinary conflicts of the war.
这场战斗是战争中最血腥的冲突之一。
C2 verb /ˈsʌli/

sully

玷污
Meaning
to damage the purity, integrity, or reputation of something
Example
The scandal sullied the politician’s reputation.
丑闻玷污了政治家的声誉。
C2 verb /sʌbˈtɛnd/

subtend

形成角度
Meaning
To extend across or form an angle at a particular point, often used in geometry.
Example
The arc subtends a 60-degree angle at the center of the circle.
弧线在圆心处形成60度角。
B2 adjective /stiːp/

steep

陡峭, 过高
Meaning
Having a sharp inclination or high slope; also can mean excessive (as in price).
Example
The hikers climbed a steep mountain trail.
登山者攀登了一个陡峭的山道。
A2 proper noun /ˌsaʊθ əˈmɛrɪkə/

south america

南美洲
Meaning
a continent located in the Western Hemisphere, mostly in the Southern Hemisphere
Example
Brazil is the largest country in South America.
巴西是南美洲最大的国家。
C2 noun ˈsaɪəns ˈdezət

science-desert

科学荒漠
Meaning
A region or area lacking in scientific development, research facilities, or educational institutions.
Example
J.C. Bose thrived in a science-desert.
J.C. Bose 在科学荒漠中茁壮成长。
A2 adverb /ˈsɪm.pli/

Simply

简单地; 仅仅;
Meaning
in a clear and easy way; merely; just
Example
I simply wanted to help you with your homework.
我只是想帮你做作业。
C2 noun /ˌsɪŋ.krəˈnɪs.ɪ.ti/

synchronicity

同步性
Meaning
The meaningful coincidence of two or more events that are not planned.
Example
The synchronicity of their thoughts amazed everyone.
他们思想的同步性让所有人都感到惊讶。
C2 adjective /ˈsæpɪd/

sapid

美味的
Meaning
Having a pleasant taste; flavorful.
Example
The chef prepared a sapid dish that delighted everyone at the table.
厨师准备了一道美味的菜肴，令桌上的每个人都非常喜欢。
C1 adjective /ˈsteɪtli/

stately

庄严和宏伟
Meaning
Having a dignified, majestic, and impressive appearance or manner.
Example
The stately mansion stood at the end of the long driveway.
那座庄严的豪宅位于长长的车道尽头。
C1 noun ˈstræt.ə.sfɪər

stratosphere

平流层
Meaning
The layer of the earth's atmosphere above the troposphere, extending to about 50 km above the earth's surface.
Example
The stratosphere provides a unique environment.
平流层提供了一个独特的环境。
A2 noun /səˈpraɪz/

surprise

惊讶
Meaning
a sudden and unexpected event or situation
Example
His arrival was a pleasant surprise.
他的到来是一个愉快的惊讶。
A1 verb /smaɪl/

smile

微笑
Meaning
to express happiness or friendliness by turning the corners of the mouth upwards
Example
She smiled when she saw the gift.
她看到礼物时笑了。
B1 adjective /ˈsɔːlti/

Salty

咸的
Meaning
having the taste of salt; containing salt; tasting of seawater
Example
The salty ocean water made her thirsty.
咸海水让她口渴。
B1 noun sɪˈlek.ʃən

selection

选择
Meaning
The action or fact of carefully choosing someone or something as being the best or most suitable.
Example
The selection process is based on merit.
选择过程基于优点。
C1 verb /ˈseɪ.vər/

savor

尽情享受
Meaning
To enjoy something completely, especially by dwelling on it.
Example
He savored every bite of the delicious cake.
他细细品味着美味的蛋糕。
B2 noun /səkˈses.ər/

Successor

继任者
Meaning
a person who succeeds another in office; someone who takes over a position or role
Example
The CEO announced his retirement and named his successor for the company.
首席执行官宣布了退休，并为公司指定了继任者。
C2 noun /səbˈsɜːviəns/

subservience

奴性
Meaning
the condition of being too willing to obey or serve others
Example
His subservience to authority annoyed his colleagues.
他对权威的奴性让同事们感到烦恼。
C2 noun səˈtaɪ.ə.ti

satiety

饱腹感
Meaning
The feeling of being satisfied or full, especially with regard to food.
Example
High-fiber foods provide longer satiety.
富含纤维的食物提供更长时间的饱腹感。
B2 adjective /skeərs/

Scarce

稀有的；难以找到的；以小量存在
Meaning
rare; not easily found; existing in small quantities
Example
Fresh water is becoming increasingly scarce in desert regions.
在沙漠地区，淡水变得越来越稀缺。
C1 noun, adjective /ˈsɒlvənt/

solvent

溶剂, 还债能力
Meaning
a liquid that dissolves other substances; also means able to pay debts
Example
Acetone is a common solvent used in laboratories.
丙酮是实验室中常用的溶剂。
C2 adjective sɑːˈtɔːrɪəl

sartorial

与衣物或风格相关
Meaning
Of or relating to clothing or style or manner of dress.
Example
His sartorial choices were always on trend and admired.
他的萨托里尔选择总是跟随潮流并受到钦佩。
B1 noun/adjective /ˈsmoʊ.kɪŋ/

smoking

吸烟
Meaning
The act of inhaling and exhaling the smoke of tobacco or other substances; wearing a tuxedo (adjective, formal context).
Example
Smoking is prohibited inside the building.
建筑物内禁止吸烟。
C1 noun /ˈsæf.rən/

Saffron

藏红花
Meaning
a deep yellow-orange color; an expensive spice derived from crocus flowers
Example
The saffron fabric looked beautiful in the sunlight.
藏红花的面料在阳光下看起来非常美丽。
C1 noun ˈsɛlf pəˈzɪʃən

self-possession

自控力
Meaning
The quality of being calm and confident and in control of one's emotions; composure.
Example
His self-possession during the crisis was remarkable.
他在危机中的自控力令人钦佩。
B2 noun /swiːt/

suite

套房
Meaning
a set of rooms designated for one person's or family's use or for a particular purpose
Example
They stayed in the presidential suite at the hotel.
他们住在酒店的总统套房里。
B1 noun /səˈpɔːtər/

supporter

支持者
Meaning
a person who supports someone or something
Example
She is a strong supporter of the local animal shelter.
她是当地动物收容所的强大支持者。
A2 adverb /ˈsʌm.haʊ/

Somehow

不管怎样;
Meaning
in some way; for some reason that is not clear
Example
Somehow, I managed to finish the project on time.
不管怎样，我成功地按时完成了项目。
B2 noun /sɪv/

Seive

筛子
Meaning
a utensil consisting of a wire or plastic mesh held in a frame, used for straining solids from liquids
Example
She used a sieve to separate the flour from lumps.
她使用筛子将面粉与结块分开。
C1 noun /səˈlɪn.ə.t̬i/

salinity

盐度, 盐浓度
Meaning
The salt content of soil or water, typically measured as a concentration.
Example
The salinity of the ocean varies depending on depth and location.
海洋的盐度会根据深度和位置变化。
A2 noun /stoʊn/

stone

石头
Meaning
a hard, naturally occurring mineral material found in the earth
Example
He threw a stone into the lake.
他把一块石头扔进湖里。
C1 noun /ʃruː/

shrew

暴躁的女人 / 小鼠类动物
Meaning
a small mouse-like animal; also a woman with a bad temper
Example
The play describes a strong-willed woman as a shrew.
这部戏描述了一位坚强的女性，像一个暴躁的女人一样。
B2 verb /ˈskræmbəl/

scramble

Meaning
to move or climb quickly using hands and feet; to mix or arrange in a hurried way
Example
The kids scrambled up the hill to catch the kite.
C1 adjective /səˈsɛp.tə.bəl/

susceptible

容易受某种特定事物影响或损害的
Meaning
Likely or liable to be influenced or harmed by a particular thing.
Example
Children are more susceptible to infections.
孩子们更容易感染。
B2 noun /streɪn/

Strain

压力; 紧张; 疲劳;
Meaning
pressure or tension; excessive demand on strength or resources
Example
Working long hours put a strain on his health.
长时间工作给他的健康带来了压力。
B2 verb səˈsteɪnd

sustained

持续的
Meaning
Strengthened and supported; not allowed to weaken or fail.
Example
The proposal was not sustained.
该提案没有得到支持。
B2 noun /ˈsnoʊ.fɔːl/

Snowfall

降雪
Meaning
the process of snow falling from the sky; the amount of snow that falls
Example
The heavy snowfall blocked all the roads yesterday.
昨天下的大雪封锁了所有的道路。
A2 noun /steɪdʒ/

stage

舞台
Meaning
a raised platform or area for performances or presentations
Example
The actor stepped onto the stage to deliver his speech.
演员登上舞台，发表他的演讲。
C1 noun /səˈvænə/

savanna

草原（散布着树木）
Meaning
a grassy plain with scattered trees, typical of tropical and subtropical regions
Example
Giraffes browsed on acacia trees across the wide savanna.
长颈鹿在广阔的萨凡纳上吃着金合欢树的叶子。
A2 adverb /ˈslaɪtli/

slightly

略微
Meaning
to a small degree or extent
Example
The temperature has slightly increased today.
今天温度略有上升。
A2 noun /sɜːr/

sir

先生
Meaning
a respectful or formal form of address used for a man, typically one of higher social status or authority
Example
Sir, may I assist you with your order?
先生，我可以帮您处理订单吗？
B2 noun /spaʊs/

spouse

配偶
Meaning
a person's husband or wife
Example
Each employee may include their spouse in the health insurance plan.
每个员工可以将配偶纳入健康保险计划。
C1 verb ˈsɪŋ.krə.naɪz

synchronize

同步
Meaning
To coordinate in time; to cause to occur or operate at the same time or rate.
Example
The dancers need to synchronize their movements.
舞者需要同步他们的动作。
A2 adjective /ˈsuːpər/

super

超级
Meaning
excellent; very good
Example
She did a super job on the project.
她在项目中做得非常好。
B1 noun /ˈsʌn.raɪz/

Sunrise

日出
Meaning
the time in the morning when the sun appears above the horizon
Example
We watched the beautiful sunrise from the mountain top.
我们从山顶观看了美丽的日出。
C1 verb /snɪp/

snip

剪切
Meaning
to cut something quickly with scissors or a sharp tool
Example
She snipped the loose thread from her dress.
她剪下了裙子上松散的线。
C1 noun /ˈspɛkjʊˌleɪtər/

speculator

投机者
Meaning
A person who forms theories without evidence, or invests in assets hoping for profit.
Example
The real estate speculator bought land hoping its value would rise.
房地产投机者购买了土地，希望其价值会增加。
A2 noun /spɔːt/

sport

体育
Meaning
an activity involving physical exertion and skill in which an individual or team competes against another or others for entertainment
Example
Football is a popular sport around the world.
足球是全球流行的体育运动。
B2 noun /ˈskændəl/

scandal

丑闻
Meaning
an event or action that causes public outrage or damage to one's reputation
Example
The politician's affair became a public scandal.
那位政治家的私 affair 成为了公共丑闻。
C1 verb /səˈlɪdəˌfaɪ/

solidify

巩固
Meaning
To make something firm, strong, or more certain.
Example
The company solidified its position in the market.
公司巩固了其在市场中的地位。
C2 noun /ˈsælvər/

salver

银托盘
Meaning
A tray, typically made of silver, used for serving food or drinks.
Example
The butler brought in the tea on a silver salver.
管家将茶水放在银托盘上端来。
C1 adjective /ˈsɔːrdɪd/

sordid

可耻的
Meaning
involving immoral or dishonorable actions; dirty or unpleasant
Example
The newspaper exposed the politician's sordid past.
报纸曝光了那位政治家的可耻过去。
B2 noun /ˈsɛm.ɪ.nɑːr/

seminar

研讨会
Meaning
A meeting for discussion or training, especially in an academic setting.
Example
The professor invited all students to attend the seminar on climate change.
教授邀请所有学生参加关于气候变化的研讨会。
C2 adjective, adverb /ˈsaɪdlɔːŋ/

sidelong

斜视
Meaning
Directed to the side; indirect, furtive, or not straightforward.
Example
She gave him a sidelong glance across the room.
她穿过房间投给他一个斜视。
C1 noun ˈsɛlfləsnɪs

selflessness

无私
Meaning
The quality of being concerned more with the needs of others than with one's own.
Example
Selflessness is a key value for community building.
无私是社区建设中的关键价值。
C2 noun /ˌsuː.pɚˈfluː.ə.t̬i/

superfluity

过剩
Meaning
An excessive amount of something; more than what is needed.
Example
The room was filled with a superfluity of decorations.
房间里充满了过多的装饰。
C1 noun /səbˈvɜːrʒən/

subversion

颠覆
Meaning
the act of trying to destroy or undermine an established system or authority
Example
The government accused the rebels of planning subversion.
政府指控叛军策划颠覆行为。
A1 noun /stɑːr/

Star

星星
Meaning
a fixed luminous point in the night sky that produces light and heat through nuclear fusion
Example
Thousands of stars are visible in the clear night sky.
数千颗星星在清澈的夜空中可见。
B2 verb /ˈspɛsɪfaɪ/

specify

指定
Meaning
to state or describe something clearly and exactly
Example
Please specify the time and place of the meeting.
请明确指定会议的时间和地点。
A2 noun /ʃeɪp/

Shape

形状; 外观
Meaning
the external form or appearance of something; condition or state
Example
The artist drew a perfect circle shape on the canvas.
艺术家在画布上画出了完美的圆形形状。
C2 adjective /ˌsuːprəˈmʌndeɪn/

supramundane

超世俗
Meaning
beyond the physical or ordinary world; transcendent
Example
The monk spoke of supramundane peace beyond material life.
和尚讲述了超越物质生活的超世俗的平静。
C2 adjective /səˈɡeɪ.ʃəs/

sagacious

贤明
Meaning
Having or showing keen mental discernment and good judgment; wise.
Example
His sagacious leadership saved the company from failure.
他的贤明领导力使公司免于失败。
C1 adjective /ˈʃɪp.ʃeɪp/

Shipshape

井井有条的; 组织良好的; 状况良好的
Meaning
neat and tidy; in good order; well-organized
Example
Everything was shipshape before the inspection.
在检查之前，一切都很完美。
B1 noun, verb /ʃeɪd/

shade

Meaning
a sheltered or darker area where direct light is blocked; to block light from something
Example
We sat under the tree for some shade.
B2 noun /ˈʃʌtəl/

shuttle

在两个地点之间定期往返的交通工具
Meaning
a vehicle or craft that travels regularly between two places.
Example
The airport shuttle runs every 30 minutes.
机场接驳车每30分钟运行一次。
C1 adjective /ˈspɛktrəl/

spectral

幽灵的
Meaning
Relating to a ghost or specter; ghostly. Also relating to a spectrum.
Example
The old mansion had a spectral atmosphere at night.
那座古老的宅邸晚上有一种幽灵般的氛围。
C1 verb /spɔːn/

spawn

产生
Meaning
to produce or generate, often in large numbers
Example
The video game has spawned many sequels.
这款视频游戏已经产生了许多续集。
B1 verb /splɪt/

split

分割
Meaning
to divide or separate into parts or groups
Example
He split the log in two with an axe.
他用斧子把木头劈成两半。
B2 noun /stəˈbɪl.ə.ti/

Stability

稳定性
Meaning
the state of being stable; firmness; steadiness
Example
Political stability is essential for economic growth.
政治稳定对经济增长至关重要。
A1 modal verb /ʃʊd/

should

应该
Meaning
used to indicate obligation or duty
Example
You should study for your exams.
你应该为考试学习。
B2 verb, noun /sniːz/

sneeze

打喷嚏
Meaning
to expel air involuntarily from the nose and mouth due to irritation; the act of sneezing
Example
I had to sneeze during the meeting.
我在会议中不得不打喷嚏。
B2 adjective ˌsɪm.əlˈteɪ.ni.əs

simultaneous

同时
Meaning
Occurring, operating, or done at the same time.
Example
Simultaneous crop failures affect global food supply.
同时的作物失败影响全球食品供应。
C1 adjective /ˌsɛrənˈdɪpɪtəs/

serendipitous

幸运的偶然
Meaning
Occurring or discovered by chance in a happy or beneficial way.
Example
Their meeting at the café was purely serendipitous.
他们在咖啡馆的相遇完全是幸运的偶然。
A1 adjective /ˈsɪmpəl/

Simple

简单的; 容易的; 不复杂
Meaning
easy to understand or do; not complicated
Example
This is a simple recipe that anyone can follow.
这是一个简单的食谱，任何人都可以跟随。
C1 verb sɪˈkwɛstər

sequester

隔离, 隐藏
Meaning
To isolate or hide away.
Example
The carbon captured by trees can be sequestered for years.
树木捕获的碳可以被隔离多年。
C1 adjective /ˈstætʃətɔːri/

statutory

法定的
Meaning
Required, permitted, or enacted by law.
Example
The company must comply with all statutory regulations.
公司必须遵守所有法定规定。
C2 verb /ʃiːð/

sheathe

放回剑鞘
Meaning
to put a sword or knife back into its cover
Example
He quickly sheathed his sword after the duel.
他在决斗后迅速把剑重新放回剑鞘。
B1 adjective /ˈsoʊ kɔːld/

so-called

Meaning
referred to as or known by a particular name or title, often misleadingly
Example
The so-called expert couldn't answer the question.
C2 adjective /sɛpˈtɛnɪəl/

septennial

每七年一次
Meaning
Occurring every seven years.
Example
The festival is a septennial tradition in the village.
这个节日是村里每七年一次的传统。
A1 verb /ˈstʌdi/

study

学习
Meaning
to learn about something; to examine carefully; to research
Example
I study mathematics every evening.
我每天晚上学习数学。
B1 verb /stæmp/

stamp

Meaning
To bring down (one's foot) heavily on the ground; to imprint a mark or seal.
Example
She stamped her foot in frustration.
B2 noun /ˌsuːpərˈvɪʒən/

supervision

监督
Meaning
the action or process of overseeing or managing something or someone
Example
The project was completed under the supervision of an experienced manager.
该项目在一位经验丰富的经理监督下完成。
C1 verb /skwɪnt/

squint

眯眼看
Meaning
to look with partly closed eyes
Example
She squinted at the bright sunlight.
她因强烈的阳光而眯着眼睛。
C2 noun /sɛkˈstɛt/

sextet

六重奏
Meaning
a group of six people playing music or a piece written for six performers
Example
The jazz sextet filled the small club with a warm, layered sound.
这支爵士六重奏用温暖、分层的声音填满了小俱乐部。
C2 verb /sɛkˈstuːpəl/

sextuple

六倍增加
Meaning
to make or become six times as great or as many
Example
Within two quarters, the campaign sextupled their daily sign-ups.
在两个季度内，活动的日常注册人数增加了六倍。
B2 noun /ˌsɛlf rɪˈspɛkt/

self-respect

自尊
Meaning
A feeling of pride and confidence in oneself; self-worth.
Example
She refused to compromise her self-respect by accepting unfair treatment.
她拒绝通过接受不公平的待遇来妥协自己的自尊。