sterile
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C1 adjective /ˈstɛr.aɪl/

sterile

无菌
Meaning
Free from bacteria or other living microorganisms; incapable of producing offspring.
Example
The surgeon worked in a sterile environment to avoid infection.
外科医生在无菌环境下工作以避免感染。
C2 noun /ˈʃʊərəti/

surety

担保人
Meaning
a person who takes responsibility for another's performance of an undertaking, such as appearing in court or paying a debt
Example
The landlord required a surety before renting the apartment.
房东在出租公寓之前要求提供保证人。
A2 noun /seɪl/

sale

促销
Meaning
the exchange of a commodity for money; the action of selling something
Example
The store is having a sale on winter clothing.
商店正在进行冬季衣物的促销。
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。
C1 verb /ʃraʊd/

shroud

覆盖
Meaning
to cover or hide; to wrap in cloth
Example
The mountain peak was shrouded in mist.
山顶被雾气笼罩。
C2 noun /sfɪˈrɒmɪtər/

spherometer

球形仪
Meaning
An instrument used for measuring the curvature of spherical surfaces.
Example
The scientist used a spherometer to measure the lens curvature.
科学家使用了一个球形仪来测量透镜的曲率。
B2 noun /ˈskɒl.ər/

Scholar

学者；学术人员
Meaning
a person who has studied a subject for a long time and knows a lot about it; an academic
Example
The renowned scholar published several books on ancient history.
著名学者出版了几本关于古代历史的书籍。
B1 adverb /ˈʃɔːt.li/

Shortly

很快; 不久; 简短地
Meaning
soon; in a short time; briefly
Example
The meeting will begin shortly.
会议很快开始。
B2 noun /stɔːrk/

Stork

鹳
Meaning
large wading bird with long legs and a long neck
Example
The stork built its nest on top of the tall chimney.
鹳在高烟囱上建造了它的巢。
C1 verb /ˈstrætɪfaɪ/

stratify

分层
Meaning
to arrange or divide into layers, classes, or categories
Example
The researchers plan to stratify the data based on age groups.
研究人员计划根据年龄组对数据进行分层。
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。
B1 noun /ˈsɛkʃən/

section

部分
Meaning
a distinct part or subdivision of something larger
Example
This section of the report needs further review.
报告的这一部分需要进一步审查。
C1 noun /ʃɑːrd/

shard

碎片
Meaning
a broken piece of glass, metal, or pottery
Example
He cut his finger on a shard of glass.
他用玻璃碎片割伤了手指。
C2 adjective /ˈsɛrid/

serried

紧密排列
Meaning
pressed or crowded together, often in rows or ranks
Example
The soldiers stood in serried ranks, ready for inspection.
士兵们站在紧密排列的队列中，准备接受检查。
B2 noun /ˌspeʃiˈælɪti/

Speciality

专长
Meaning
a particular area of activity or interest that someone focuses on; expertise in a specific field
Example
His speciality is Italian cuisine.
他的专长是意大利菜肴。
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。
B1 noun /seɪk/

Sake

原因; 理由;
Meaning
purpose or reason for doing something; benefit or interest
Example
She worked overtime for the sake of her family's future.
她为了家人的未来加班。
C1 noun /ˈstoʊəˌweɪ/

stowaway

偷渡者
Meaning
A person who hides on a ship, plane, or other vehicle in order to travel secretly without paying.
Example
The crew discovered a stowaway hiding in the cargo hold.
船员发现一个藏在货舱里的偷渡者。
C1 noun/adjective /ˈstɜː.lɪŋ/

sterling

英国货币 / 优秀
Meaning
British money, especially pounds; of excellent quality.
Example
She was praised for her sterling work on the project.
她因在项目中的出色工作而受到表扬。
B2 noun ˈʃɔːtkʌmɪŋz

shortcomings

短处
Meaning
A fault or failure to meet a certain standard; deficiencies.
Example
Institutional shortcomings affect student behavior negatively.
制度性短处对学生行为产生了负面影响。
A2 noun /suːt/

suit

西装
Meaning
a set of clothes made of the same fabric, usually consisting of trousers and a jacket
Example
He wore a black suit to the wedding.
他穿着黑色西装参加婚礼。
B2 noun, verb /striːk/

streak

条纹或线；快速移动至指定方向
Meaning
a long, thin line or mark; to move very quickly in a specified direction
Example
Lightning streaked across the night sky.
闪电划过夜空。
C1 noun /ˈsæf.aɪər/

Saphire

蓝宝石
Meaning
a precious stone that is typically blue in color
Example
The royal crown was adorned with a large sapphire.
皇家王冠上镶嵌着一颗大蓝宝石。
A2 noun /ʃɪp/

Ship

船
Meaning
a large watercraft that travels the world's oceans and seas
Example
The cargo ship departed from the port at dawn.
货船在黎明时分离开了港口。
C1 verb /səˈkʌm/

succumb

Meaning
To give in to pressure, temptation, or illness; to yield or fail to resist.
Example
He finally succumbed to his illness after a long struggle.
B2 adjective /ˈstʌnɪŋ/

stunning

令人惊叹
Meaning
extremely impressive or attractive
Example
The view from the top of the mountain was absolutely stunning.
从山顶看到的景色简直令人惊叹。
C2 noun /ˈsteɪtkraft/

statecraft

治国艺术
Meaning
The art of governing and managing state affairs effectively.
Example
The leader was praised for his exceptional statecraft in handling international relations.
领导因其在处理国际关系方面的卓越治国艺术而受到赞扬。
A2 noun /ˈsɪz.ərz/

Scissors

剪刀
Meaning
a cutting instrument with two sharp blades that are joined and work against each other
Example
She used scissors to cut the paper into small pieces.
她用剪刀把纸剪成小块。
C1 verb /səbˈstænʃieɪt/

substantiate

证实
Meaning
To provide evidence to support or prove the truth of something.
Example
The lawyer worked to substantiate the claims with solid evidence.
律师努力通过确凿证据来证实这些主张。
B1 verb /sərˈvaɪv/

survive

生还
Meaning
To continue to live or exist after a difficult event or situation.
Example
He managed to survive the storm.
他成功地生还了风暴。
B1 verb, adjective /spɛnt/

spent

花费的, 精疲力竭的
Meaning
Past tense and past participle of 'spend'; also used as an adjective meaning exhausted or used up.
Example
She spent all her energy preparing for the exam.
她为考试花费了所有的精力。
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。
C1 adjective /snaɪd/

snide

讽刺的
Meaning
mocking or insulting in an indirect way
Example
He couldn’t resist making a snide comment about her dress.
他忍不住对她的裙子做出讽刺的评论。
C1 adjective /ˈskwiːmɪʃ/

squeamish

容易感到恶心、头晕或反感
Meaning
easily made to feel sick, faint, or disgusted
Example
She felt squeamish at the sight of blood.
她看到血时感到恶心。
C2 noun /ˌspoʊliˈeɪʃən/

spoliation

破坏
Meaning
The act of destroying or ruining something, often evidence or property.
Example
The court punished the company for the spoliation of evidence.
法院因公司破坏证据而惩罚了该公司。
C1 verb /ˈsɪnɚdʒaɪzd/

synergized

协同, 协调, 合作
Meaning
Combine in such a way that the total effect is greater than the sum of the individual effects.
Example
The teams were synergized to maximize productivity.
团队被协同工作以最大化生产力。
B2 verb /ʃriːk/

shriek

尖叫
Meaning
to make a loud, high-pitched cry
Example
She shrieked when she saw the spider.
她看到蜘蛛时尖叫了。
C1 adjective /sɪər/

Sear

枯萎的; 烧焦的; 干枯的
Meaning
withered; dried up; burned or scorched
Example
The sear leaves fell from the trees in autumn.
秋天枯萎的叶子从树上掉下来。
A2 noun səˈsaɪəti

society

社会
Meaning
The aggregate of people living together in a more or less ordered community.
Example
Society plays a pivotal role in shaping an individual's values.
社会在塑造个体价值观方面发挥着重要作用。
B1 noun /seɪlz/

sales

Meaning
activities related to selling products or services
Example
The company saw a significant increase in sales during the holiday season.
B2 adjective /ˈsændi/

Sandy

沙的; 沙质的
Meaning
covered with sand; containing sand; having the texture of sand
Example
The sandy beach stretched for miles along the coast.
沙滩沿海岸延伸了几英里。
A1 pronoun /ʃi/

she

她
Meaning
a female person or animal previously mentioned or easily identified
Example
She is going to the market to buy vegetables.
她去市场买蔬菜。
C1 adjective /ˈsleɪ.vɪʃ/

slavish

奴隶般的
Meaning
showing no originality; completely imitative or overly submissive
Example
His slavish devotion to tradition prevented any innovation.
他对传统的奴隶般忠诚阻碍了任何创新。
B2 adjective /senˈseɪʃənəl/

Sensational

震撼的; 极其印象深刻的
Meaning
causing great excitement or shock; extremely impressive
Example
The sensational performance left the audience speechless.
这场震撼的表演让观众哑口无言。
C1 noun /spæt/

spat

小争吵
Meaning
a short, petty quarrel or argument
Example
They had a brief spat about who should do the dishes.
他们就谁应该洗碗发生了一个小争吵。
B1 noun /ʃɑːrk/

Shark

鲨鱼
Meaning
a large marine fish with sharp teeth and a cartilaginous skeleton
Example
The shark is a powerful predator of the ocean.
鲨鱼是海洋中的强大掠食者。
B2 noun, verb /stɛm/

stem

茎 / 遏制
Meaning
Noun: The main stalk of a plant. Verb: To stop or restrict the flow or development of something.
Example
The gardener cut the stem of the rose; New policies aim to stem the flow of pollution.
园丁剪下了玫瑰的茎；新政策旨在遏制污染的流动。
B1 noun ˈseʃən

session

会议
Meaning
A meeting of an official body, especially a legislature, council, or court of law, to conduct its business.
Example
The session was held on February 25.
会议于2月25日举行。
B2 adjective /suːˈpɜːrb/

superb

极好的
Meaning
extremely good; excellent
Example
The hotel provided superb service during our stay.
酒店在我们停留期间提供了极好的服务。
C1 noun /ˌsɛlf ɪnˈdʌldʒəns/

self-indulgence

自我纵容
Meaning
The act of allowing oneself to enjoy pleasures or desires excessively.
Example
His weekend of self-indulgence included eating sweets and watching movies nonstop.
他的自我纵容周末包括吃糖果和不停地看电影。
C1 verb /ˈsʌkɪŋ/

sucking

吮吸
Meaning
Drawing in a liquid, air, or other substance through the mouth or a tube by creating a vacuum; also used figuratively for something unpleasant or ineffective
Example
The baby is sucking on a pacifier.
婴儿正在吮吸安抚奶嘴。
B2 adjective /self səˈfɪʃənt/

Self-sufficient

自给自足
Meaning
able to provide for oneself without depending on others
Example
The farm is completely self-sufficient in producing vegetables.
这个农场在蔬菜生产方面完全自给自足。
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。
B2 adjective /ˈsɛksi/

sexy

性感的
Meaning
sexually attractive or exciting
Example
She wore a sexy red dress to the party.
她穿着一条性感的红色连衣裙去参加派对。
B2 noun /ˈʃepərd/

Shepherd

牧羊人
Meaning
a person who tends and guards sheep
Example
The shepherd guided his flock to the green pasture.
牧羊人把他的羊群引导到绿色的牧场。
C1 verb /slɪŋk/

slink

悄悄移动
Meaning
to move quietly and secretly, often to avoid being noticed
Example
The cat slunk into the room without making a sound.
猫悄悄地进入房间，没有发出任何声音。
B2 noun /ˈsaɪd.laɪn/

sideline

副业
Meaning
An activity done in addition to one's main job or area of work.
Example
The sideline discussions led to mutual understanding.
副线讨论促进了相互理解。
B2 noun /ˈspəʊksmən/

spokesman

发言人
Meaning
a person who speaks on behalf of others, especially for a group or organization
Example
The spokesman addressed the crowd during the rally.
发言人在集会中向人群讲话。
A1 noun /ˈstɔːri/

story

故事
Meaning
a narrative of real or imaginary events
Example
She told a fascinating story about her travels.
她讲述了一个关于旅行的迷人故事。
B2 adjective /ˈspaɪ.rəl/

Spiral

螺旋
Meaning
winding in a continuous curve; helical
Example
The spiral staircase led to the top floor.
螺旋楼梯通向了最上面的一层。
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。
A1 noun /sɛpˈtɛmbər/

september

九月
Meaning
The ninth month of the year in the Gregorian calendar
Example
My birthday is in September, and I always celebrate it with friends.
我的生日在九月，我总是和朋友一起庆祝。
C1 noun /ˈsækrɪlɪdʒ/

sacrilege

亵渎
Meaning
Violation or misuse of what is regarded as sacred.
Example
Stealing from the temple was considered an act of sacrilege.
从寺庙偷窃被视为亵渎行为。
C2 verb /ˈsɪmpər/

simper

傻笑或做作的笑
Meaning
to smile in a silly, self-conscious, or affected way
Example
She simpered at his compliment, clearly embarrassed.
她在他的夸奖下傻笑，显然感到尴尬。
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。
A2 noun /stɛp/

step

Meaning
a movement made by lifting one foot and putting it down in a new position
Example
She took a step towards the door.
C1 verb /səˈplænt/

supplant

取代
Meaning
To take the place of something or someone, often by force or strategy.
Example
Digital platforms have supplanted traditional newspapers.
数字平台已经取代了传统报纸。
B2 noun /sɔːrd/

Sword

剑
Meaning
a weapon with a long metal blade and a handle, used for fighting
Example
The knight drew his sword to defend the castle.
骑士拔出了剑来保护城堡。
C1 adjective /ˈspaɪni/

spiny

多刺的
Meaning
covered with or full of spines; having sharp points
Example
The spiny cactus stood tall in the desert.
多刺的仙人掌在沙漠中挺立。
A2 verb /sɔːrt/

sort

排序
Meaning
to arrange or categorize something
Example
Please sort the files by date.
请按日期排序文件。
C2 adjective /sɪˈkweɪʃəs/

sequacious

盲目追随
Meaning
Lacking independence of thought; blindly following.
Example
The sequacious students never questioned their teacher's opinions.
盲目追随的学生从未质疑过他们老师的意见。
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。
B2 verb /stɪtʃ/

stitch

幸福
Meaning
to sew with needle and thread; to join pieces of fabric
Example
She will stitch the torn dress carefully.
她无法掩饰她收到奖项时的幸福。
B2 noun /skoʊp/

scope

范围
Meaning
the range of one's perception, understanding, or activity
Example
The project is beyond the scope of our resources.
该项目超出了我们资源的范围。
C2 adjective /sɪˈnæp.tɪk/

synaptic

突触的
Meaning
Related to the signal transmission process between nerve cells.
Example
Learning strengthens synaptic connections in the brain.
学习增强大脑中的突触连接。
B2 adjective /ˌsɪm.pəˈθet.ɪk/

Sympathetic

有同情心的; 富有理解的; 敏感的;
Meaning
showing compassion or understanding for someone's feelings or situation
Example
She was very sympathetic when I told her about my problems.
当我告诉她我的问题时，她表现得非常有同情心。
B2 verb /ˈstreɪtən/

straighten

整理
Meaning
to make something straight or tidy; to correct or organize
Example
She straightened her hair before the meeting.
她在会议前整理了头发。
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 /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。
B2 verb /snæp/

snap

折断
Meaning
to break suddenly; to speak angrily; to take a photograph quickly
Example
The rope snapped under the weight.
绳子在重压下断裂。
A2 adjective /ˈstuː.pɪd/

Stupid

愚蠢的; 笨的; 傻的
Meaning
lacking intelligence or common sense; foolish
Example
It was stupid of me to forget my umbrella on a rainy day.
在一个下雨的日子里，我忘记带伞真是愚蠢。
C2 verb /ˈskærɪfaɪ/

scarify

松土
Meaning
to make shallow cuts or scratches; to loosen the surface of soil
Example
The farmer scarified the soil before planting seeds.
农民在种植种子之前松土。
C1 adjective /ˈsɒmbər/

somber

阴沉
Meaning
Dark or dull in color or tone; gloomy or serious.
Example
The funeral had a somber atmosphere.
葬礼有一种阴沉的气氛。
B1 noun /sɔɪl/

soil

土壤
Meaning
The upper layer of earth in which plants grow.
Example
The soil in this area is reddish.
这个区域的土壤是红色的。
B2 noun /ˈsɜːdʒən/

surgeon

外科医生
Meaning
a doctor who performs medical operations
Example
The surgeon performed a complex heart operation.
外科医生进行了复杂的心脏手术。
B2 noun /ˌsɛpəˈreɪʃən/

Separation

分离；隔离；拆分
Meaning
the action or state of moving or being moved apart; the division of something into constituent or distinct elements
Example
The separation of the two countries was peaceful.
两个国家的分离是和平的。
B1 noun /ˈʃed.juːl/

Schedule

日程安排; 计划;
Meaning
a plan that lists things or events and the times when they will happen; timetable
Example
Please check your schedule before confirming the meeting time.
请在确认会议时间前查看您的时间表。
A2 adverb /ˈseɪf.li/

Safely

安全
Meaning
in a safe manner; without danger or risk
Example
Drive safely on the icy road.
在结冰的道路上安全行驶。
C1 noun /ˈspaɪər/

spire

尖顶
Meaning
a tall, pointed structure on top of a building, especially a church
Example
The church spire could be seen from miles away.
教堂的尖顶从远处可见。
B2 adjective sɪnˈθet̬.ɪk

synthetic

合成的
Meaning
Made by chemical synthesis, especially to imitate a natural product; artificial.
Example
Synthetic chemicals are used in processed foods.
合成化学品被用于加工食品中。
C2 noun /ˈsɪlvər kɑrp/

Silver carp

银鲤
Meaning
a large freshwater fish with silvery scales, commonly farmed for food
Example
Silver carp is widely cultivated in fish farms across Asia.
银鲤在亚洲的鱼场中被广泛养殖。
A2 adjective /smɑːrt/

Smart

聪明的; 机智的; 穿着得体的; 时尚的
Meaning
intelligent; quick-witted; well-dressed; stylish
Example
She made a smart decision to invest in technology stocks.
她做出了一个聪明的决定，投资于科技股票。
C1 adjective /ˈstɪndʒi/

stingy

吝啬
Meaning
unwilling to spend or give; miserly
Example
He is too stingy to buy a gift for his friend.
他太吝啬了，连给朋友买礼物都不愿意。
A2 noun /ˈsoʊʃəl ˈmiːdiə/

social media

社交媒体
Meaning
Websites and applications that enable users to create and share content or to participate in social networking.
Example
Social media often causes delays.
社交媒体经常造成延迟。
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。
A2 verb /skiː/

ski

滑雪
Meaning
to glide over snow on skis
Example
We went skiing in the Alps last winter.
我们去年冬天去了阿尔卑斯滑雪。
C2 noun /ˌsɪləbɪˈkeɪʃən/

syllabication

音节划分
Meaning
The division of words into syllables.
Example
Proper syllabication helps in correct pronunciation.
正确的音节划分有助于正确发音。
C1 noun ˈsʌs.tɪ.nəns

Sustenance

维持生命的食物或支持
Meaning
Food or support necessary for sustaining life
Example
Water is essential for human sustenance.
水是人类生存的必要条件。
C2 noun /ˈsteɪsɪs/ or /ˈstæsɪs/

stasis

停滯
Meaning
A state of inactivity or equilibrium; a situation where nothing changes.
Example
The negotiations reached a state of stasis with no progress made.
谈判达到了停滞状态，没有取得进展。
C2 adjective /səˈluːtəˌtɔri/

salutatory

欢迎辞
Meaning
Relating to or expressing a greeting or an address, especially at the beginning of a speech.
Example
She delivered a salutatory address at the graduation ceremony.
她在毕业典礼上发表了欢迎辞。
A1 noun/adjective /saʊθ/

south

南方
Meaning
the direction towards the bottom of a map, opposite to north
Example
The sun rises in the east and sets in the south.
太阳从东方升起，西方落下。
A2 verb /ˈsetəl/

settle

定居
Meaning
to resolve; to establish residence; to calm down
Example
They decided to settle in a quiet village.
他们决定在一个安静的村庄定居。
A2 adjective /ˈsʌn.i/

Sunny

阳光明媚的; 乐观的
Meaning
bright with sunlight; cheerful and optimistic
Example
It's a beautiful sunny day perfect for a picnic.
这是一个美丽的阳光明媚的日子，适合野餐。
B2 noun /ˈsɪr.i.əs.nəs/

Seriousness

严肃; 重要
Meaning
the quality of being serious; gravity; importance
Example
The seriousness of the situation became clear when the doctor spoke.
当医生说话时，情况的严肃性变得明显。
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。
A1 noun /ˈsætərdeɪ/

saturday

星期六
Meaning
The day of the week between Friday and Sunday; traditionally the sixth day of the week
Example
We are going to the beach on Saturday.
我们星期六去海滩。
A2 noun /skwɛə(r)/

square

正方形
Meaning
a shape with four equal straight sides and four right angles
Example
The table has a square shape.
桌子是正方形的。
C1 verb /ˈsɔːntər/

saunter

Meaning
to walk in a slow, relaxed manner without hurry or effort
Example
We sauntered along the riverside, stopping now and then to watch the boats.
B1 adjective /ˈsuːtəbl/

suitable

合适
Meaning
appropriate or right for a particular person, purpose, or situation
Example
This dress is suitable for the wedding.
这件裙子适合婚礼。
C1 adjective /ˌsækrɪˈfɪʃəl/

sacrificial

祭献的
Meaning
Relating to or involving sacrifice.
Example
The lamb was used as a sacrificial offering in the ritual.
这只羊在仪式中被用作祭献的礼物。
C1 adverb /suːˈpɜːb.li/

Superbly

卓越地
Meaning
in an excellent or outstanding manner
Example
She performed superbly in the dance competition.
她在舞蹈比赛中表现得卓越地。
C2 verb /səˈfjuːz/

suffuse

弥漫
Meaning
to gradually spread through or over something
Example
A warm glow suffused her face as she smiled.
当她微笑时，一种温暖的光辉弥漫到她的脸上。
B1 adjective ˈsʌb.mə.riːn

submarine

潜水艇
Meaning
Existing, occurring, or used underwater, especially in relation to vessels or cables.
Example
Submarine cables facilitate international communication.
海底电缆促进了国际通信。
B1 noun /ʃel/

Shell

壳
Meaning
hard outer covering of an animal; explosive projectile for a gun
Example
The artillery fired a shell at the enemy position.
炮兵向敌方阵地发射了一个炮弹。
B2 noun /ˌsɛlf əˈwɛə.nəs/

self-awareness

自我意识
Meaning
Conscious knowledge of one's own character, feelings, motives, and desires.
Example
Self-awareness helps in understanding one's emotions and actions.
自我意识有助于理解一个人的情感和行为。
C1 verb /sərˈpæs/

surpass

超越
Meaning
to exceed or go beyond
Example
Her performance surpassed all expectations.
她的表现超出了所有预期。
B2 noun /səˈplaɪə(r)/

supplier

供应商
Meaning
a person or company that provides goods or services
Example
The supplier delivered the products on time.
供应商按时交付了产品。
C2 noun /ˈsɜːfdəm/

serfdom

农奴制
Meaning
The status or condition of being a serf, bound to work for a lord.
Example
Many peasants in medieval Europe lived under serfdom.
许多中世纪欧洲的农民生活在农奴制下。
C1 verb /smɛlt/

smelt

冶炼
Meaning
to extract metal from its ore by heating and melting
Example
The workers smelt iron from its ore in the factory.
工人在工厂中从矿石中冶炼铁。
C1 noun /ˈsɛmbləns/

Semblance

表象; 外观
Meaning
the outward appearance or apparent form of something, especially when the reality is different
Example
There was only a semblance of order in the chaotic office.
在混乱的办公室里只有一种表象的秩序
C2 verb /ˈsʌbdʒʊˌɡeɪt/

subjugate

征服
Meaning
To bring under domination or control, especially by conquest.
Example
The empire sought to subjugate the neighboring kingdoms.
帝国试图征服邻国。