sylph
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C2 noun /sɪlf/

sylph

空灵精灵
Meaning
A mythical spirit of the air; also refers to a slender, graceful woman.
Example
She moved across the stage like a sylph, light and graceful.
她像一个空灵精灵一样轻盈而优雅地在舞台上移动。
A1 noun /sɪks/

six

六
Meaning
the number 6
Example
There are six apples on the table.
桌子上有六个苹果。
B1 verb /ˈsætɪsfaɪ/

satisfy

满足
Meaning
to fulfill the desires, expectations, or needs of someone; to make content
Example
The delicious meal satisfied our hunger completely.
美味的食物完全满足了我们的饥饿。
B1 noun /sʌm/

sum

和
Meaning
the total amount resulting from the addition of two or more numbers or items
Example
The sum of 8 and 12 is 20.
8和12的和是20。
C1 adjective /sər'pæs.ɪŋ/

Surpassing

卓越; 超过; 非凡
Meaning
exceeding; going beyond; outstanding
Example
Her surpassing beauty made everyone stop and stare.
她超凡的美丽让每个人都停下来盯着她看。
B2 adjective /ˈstʌdid/

studied

深思熟虑
Meaning
carefully considered, deliberate, or planned
Example
Her response was calm and studied, not impulsive.
她的回答冷静而深思熟虑，非冲动。
C2 adjective /səˈmætɪk/

somatic

身体的
Meaning
Relating to the body, especially as distinct from the mind.
Example
Yoga can improve both somatic and mental health.
瑜伽可以改善身体和心理健康。
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 noun, adjective /ˈsoʊʃəlɪst/

socialist

社会主义者
Meaning
a person who advocates for socialism; relating to socialism
Example
He is a well-known socialist writer.
他是一个著名的社会主义作家。
C2 adjective /ˌsʌb.əˈkwɒt.ɪk/

subaquatic

水下的
Meaning
Existing, living, or located under water.
Example
Divers explored the subaquatic cave system filled with rare fish.
潜水员探索了充满稀有鱼类的水下洞穴系统。
C1 noun /stents/

stents

支架
Meaning
Small mesh tubes used to treat narrow or blocked arteries.
Example
Stents were successfully placed using robotic techniques.
支架通过机器人技术成功放置。
B1 noun /skɑːrf/

Scarf

围巾
Meaning
a length of fabric worn around the neck or head for warmth, protection, or fashion
Example
She wrapped a warm scarf around her neck in the cold weather.
她在寒冷的天气里围了一条温暖的围巾。
C1 adjective /ˈspɑːrtn/

spartan

斯巴达式
Meaning
showing simplicity and lack of luxury; austere
Example
He lived in a spartan room with just a bed and a chair.
他住在一个斯巴达式的房间里，只有一张床和一把椅子。
C2 adjective /ˈsɪŋkəˌpeɪtɪd/

syncopated

切分节奏
Meaning
Characterized by displaced beats or rhythms, especially in music.
Example
The jazz piece had a syncopated rhythm that energized the crowd.
这段爵士乐有一个切分节奏，激励了人群。
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。
B2 adjective /ˈstɛdi/

steady

稳定
Meaning
firm, stable, and not likely to change suddenly
Example
He kept his hand steady while painting the picture.
他在画画时保持手稳定。
B1 noun /ˈsʌn.flaʊər/

Sun flower

向日葵
Meaning
a large yellow flower that turns to face the sun
Example
The sunflower field looked amazing in the bright sunlight.
向日葵田在明亮的阳光下看起来很美。
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 adjective /ˈsaɪ.lənt/

Silent

安静的; 沉默的; 平静的
Meaning
making no sound; quiet; not speaking
Example
The library was completely silent during study hours.
在学习时间，图书馆是完全安静的。
B1 noun /stiːl/

steel

钢铁
Meaning
a strong, hard metal made of iron and carbon
Example
The building was made from steel to ensure its durability.
建筑物是用钢铁建造的，以确保其耐久性。
C2 noun /ˈstrætədʒəm/

stratagem

计策
Meaning
a plan or scheme designed to achieve a particular goal, often by trickery
Example
The general devised a clever stratagem to outwit the enemy.
将军设计了一个巧妙的计策来智胜敌人。
C2 verb /skʌlk/

skulk

Meaning
to move or hide secretly, often because you are planning something bad or are feeling guilty
Example
He tried to skulk in the shadows to avoid being seen.
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。
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 noun /ˈsɛpərətɪst/

separatist

分裂主义者
Meaning
A person who supports the separation of a group from a larger body, often for political or cultural independence.
Example
The separatist group demanded independence from the central government.
分裂主义者要求中央政府独立。
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。
B2 adjective /steɪl/

Stale

陈旧的; 过时的; 不新鲜的
Meaning
no longer fresh; lacking originality or novelty
Example
The bread became stale after sitting out for three days.
面包放了三天后变得陈旧。
C1 adjective /ˈsæv.i/

savvy

聪明, 精明
Meaning
Having practical knowledge and the ability to make good judgments.
Example
She is a tech-savvy entrepreneur.
她是一位技术精通的企业家。
B2 noun/verb /swɔːrm/

swarm

蜂群
Meaning
A large group of insects or people moving together.
Example
A swarm of bees surrounded the tree.
一群蜜蜂围绕着树。
C1 verb /ˈstɪɡmətaɪz/

stigmatize

污名化
Meaning
to describe or regard someone as worthy of disgrace or disapproval
Example
People with certain illnesses are often unfairly stigmatized.
患有某些疾病的人常常被不公正地污名化。
C1 adjective /spɑːrs/

sparse

稀少
Meaning
thinly scattered or distributed; not dense or abundant
Example
Vegetation was sparse in the desert.
沙漠中的植被稀少。
C1 verb /ˈʃɪmər/

shimmer

闪烁
Meaning
To shine with a soft, wavering light.
Example
The lake shimmered under the moonlight.
湖泊在月光下闪烁。
B2 adjective /ˈʃæb.i/

Shabby

破旧的; 状况差的; 显示磨损迹象的; 不公平或残忍的
Meaning
worn out; in poor condition; showing signs of wear; unfair or mean
Example
His shabby clothes showed that he had been traveling for days.
他的破旧衣服显示他已经旅行了几天。
C2 noun /sɒl/

sol

索尔（音乐音阶的第五个音符）
Meaning
The fifth note of the sol-fa musical scale (do, re, mi, fa, sol, la, ti); also the Latin word for sun
Example
The choir practiced singing the note sol during rehearsal.
合唱团在排练时练习唱索尔音符。
C1 adjective /ˈstɛriəˌtaɪpt/

stereotyped

刻板的
Meaning
Conforming to a fixed or oversimplified idea of what someone or something is like.
Example
His stereotyped jokes failed to impress the audience.
他的刻板笑话未能给观众留下深刻印象。
B2 verb /ˈstrʌɡlɪŋ/

struggling

挣扎
Meaning
Making forceful or violent efforts to get free of restraint or constriction; having difficulty achieving something.
Example
Many regions are struggling with economic recovery.
许多地区在经济复苏中挣扎。
B1 noun /ˈsʌb.mə.riːn/

Sub-marine

潜艇
Meaning
a warship with a streamlined hull designed to operate completely submerged in the sea
Example
The submarine dived deep into the ocean to avoid detection.
潜水艇潜入海洋深处以避免被发现。
C2 adjective /ˈswɔːrði/

swarthy

黝黑的
Meaning
Having a dark complexion or skin tone.
Example
The sailor had a swarthy face from years under the sun.
那个水手的脸因为多年在阳光下工作而变得黝黑。
C1 noun /ˈstænzə/

stanza

诗节
Meaning
a group of lines forming a unit in a poem or song
Example
The poem begins with a stanza describing nature.
这首诗以一节描述自然的诗句开始。
B1 noun /ˈsʌməri/

summary

总结
Meaning
A brief statement of the main points of something.
Example
She wrote a summary of the book for her class.
她为她的课堂写了一份书籍总结。
C2 noun /səˈɡæs.ə.t̬i/

sagacity

深厚的智慧
Meaning
The quality of being sagacious; having or showing keen mental discernment and good judgment.
Example
His sagacity made him a great leader.
他的萨加西蒂使他成为伟大的领导者。
B2 noun /ˈsɛtlər/

settler

定居者
Meaning
a person who settles in a new area or land
Example
The settlers arrived in the new town and started building homes.
定居者们抵达新城市并开始建造房屋。
A2 noun /ˈspiːkər/

speaker

演讲者
Meaning
a person who speaks or talks, especially as an occupation
Example
The speaker delivered an inspiring speech at the conference.
演讲者在会议上发表了激动人心的演讲。
B1 noun /ˈspæroʊ/

Sparrow

麻雀
Meaning
small brown and grey bird commonly found in cities and towns
Example
The sparrow chirped cheerfully from the tree branch.
麻雀愉快地从树枝上啁啾。
A2 noun /ˈstjuːdiəʊ/

studio

工作室
Meaning
a room where an artist, photographer, musician, or broadcaster works
Example
The singer recorded her new song in the studio.
歌手在工作室录制了她的新歌。
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。
C1 adjective /ˈstæɡ.nənt/

Stagnant

停滯的; 靜止的; 無發展的
Meaning
not moving or flowing; showing no activity or development
Example
The stagnant water in the pond was covered with algae.
池塘裡的停滯水被藻類覆蓋。
B2 noun ˈsɛv.ən ˈwʌn.dərz

Seven Wonders

世界七大奇迹
Meaning
The seven most remarkable and famous structures in the world, representing architectural feats and cultural significance.
Example
The Seven Wonders of the world reflect human brilliance.
世界七大奇迹反映了人类的辉煌。
A2 noun /skɪl/

skill

技能
Meaning
the ability to do something well through training or experience
Example
Her skill in painting impressed everyone.
她在绘画方面的技能给大家留下了深刻印象。
B2 adjective /ˌsuː.pəˈnætʃ.ər.əl/

Supernatural

超自然的
Meaning
relating to things that cannot be explained by natural or scientific laws; beyond the normal or physical world
Example
The old house was said to have supernatural powers.
据说那座老房子具有超自然的力量。
C1 adjective /ˈstɒdʒi/

stodgy

沉闷的，老式的
Meaning
Dull, uninspired, or old-fashioned; also heavy and hard to digest when referring to food.
Example
The lecture was so stodgy that many students struggled to stay awake.
讲座太沉闷了，以至于许多学生难以保持清醒。
B2 noun /ˈsɪmfəni/

Symphony

交响曲
Meaning
an elaborate musical composition for full orchestra, typically in four movements
Example
The orchestra performed Beethoven's Fifth Symphony.
乐团演奏了贝多芬的第五交响曲。
B1 adjective /sɪnˈsɪər/

Sincere

真诚的; 真实的; 无做作
Meaning
honest and genuine in expressing feelings; free from pretense or deceit
Example
She gave me a sincere apology for her mistake.
她为自己的错误真诚地道歉。
B2 verb /sɪp/

sip

小口喝
Meaning
to drink in small quantities; to taste carefully
Example
She sipped her tea slowly while reading the newspaper.
她一边读报纸一边慢慢地小口喝茶。
C2 verb /ˈstræɡəl/

straggle

不规则地移动
Meaning
To move or spread in an irregular, scattered, or untidy way.
Example
The children began to straggle behind on the long hike.
孩子们开始在漫长的徒步旅行中掉队。
C2 adjective /ˈsɪlvən/

sylvan

林地的
Meaning
Relating to or characteristic of the woods or forest.
Example
The cottage was set in a sylvan landscape full of tall trees.
这座小屋位于一个林地的景观中，充满了高大的树木。
C1 adjective /ˈseɪ.li.ənt/

salient

重要的，突出的或显著的
Meaning
Most important, prominent, or noticeable
Example
The report highlighted the salient points of the discussion.
报告突出讨论中的重点。
C2 noun /spɪˈlʌŋkər/

spelunker

洞穴探险者
Meaning
A person who explores caves as a hobby.
Example
The spelunker carried ropes and lights into the dark cave.
洞穴探险者带着绳子和灯光进入了黑暗的洞穴。
A1 adjective /sloʊ/

slow

慢
Meaning
moving or happening at a low speed
Example
The car moved slowly down the street.
车子在街上慢慢行驶。
A2 noun ˈsɜːvɪsɪz

services

服务
Meaning
The action of helping or doing work for someone.
Example
Services in the healthcare industry are essential for well-being.
医疗行业的服务对于健康至关重要。
C1 noun, verb /spreɪn/

sprain

扭伤
Meaning
an injury to a joint in which the ligaments are stretched or torn
Example
She sprained her ankle while running in the park.
她在公园跑步时扭伤了脚踝。
B2 adjective /ˈsɪtʃueɪtɪd/

situated

位于
Meaning
located in a particular place or position
Example
The hotel is situated near the beach.
酒店位于海滩附近。
C1 adjective /ˈsɪm.jʊ.leɪ.tɪd/

simulated

模拟的
Meaning
Artificially created to look real but not actually real.
Example
The pilot trained in a simulated flight environment.
飞行员在模拟的飞行环境中训练。
C1 adjective /səbˈdʒɛktɪv/

subjective

主观的
Meaning
based on personal feelings, tastes, or opinions rather than facts
Example
Beauty is often considered a subjective concept.
美丽通常被视为一个主观的概念。
C1 adjective /səbˈsɜːviənt/

subservient

Meaning
prepared to obey others unquestioningly; less important than something else
Example
She was too subservient to challenge his decision.
B2 noun /ˈsiː.mən/

Seaman

海员
Meaning
a person who works on a ship; sailor
Example
The experienced seaman navigated the ship through the storm.
经验丰富的海员在风暴中导航。
C2 noun /ˈsʌfrədʒɪst/

suffragist

妇女参政权运动者
Meaning
a person advocating the extension of suffrage, especially to women
Example
The suffragists organized rallies to demand voting rights for women.
妇女参政权运动者组织了集会，要求为女性争取投票权。
A2 noun /ˈstrɔːbəri/

Strawberry

草莓
Meaning
a small red heart-shaped fruit with tiny seeds on the surface and sweet taste
Example
I love eating fresh strawberries with cream during summer.
我喜欢在夏天吃新鲜的草莓配奶油。
A2 noun /ˈspaɪ.dər/

Spider

蜘蛛
Meaning
a small creature with eight legs that makes webs to catch insects
Example
The spider caught a fly in its web.
蜘蛛在它的网中抓住了一只苍蝇。
B2 adverb /ˈsɛp.ər.ət.li/

separately

分别地
Meaning
in a way that is apart or individually; not together
Example
They decided to travel separately to the conference.
他们决定分别前往会议。
B1 noun /ˈsæl.ər.i/

Salary

薪水
Meaning
a fixed regular payment, typically paid on a monthly basis
Example
She receives a good salary for her work as a teacher.
她作为教师的工作，得到了很好的薪水。
B1 noun /ˈswɛtʃɜːrt/

sweatshirt

运动衫
Meaning
A casual, long-sleeved pullover garment, typically made of cotton or fleece, worn for warmth or comfort.
Example
He wore a grey sweatshirt while jogging in the park.
他在公园慢跑时穿着灰色的斯威特衫。
B1 adverb /ˈsel.dəm/

Seldom

很少
Meaning
not often; rarely; infrequently
Example
She seldom goes to the cinema.
她很少去电影院。
B2 noun/verb /ˈsæd.əl/

saddle

马鞍; 使某人承担责任
Meaning
A seat fastened on the back of a horse for riding; to burden someone with a responsibility.
Example
He saddled the horse before going for a ride.
他在骑马之前给马鞍上鞍。
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。
B2 noun /ˈʃɛərˌhoʊldər/

shareholder

股东
Meaning
an individual or organization that owns shares in a company
Example
Each shareholder has the right to vote at the annual meeting.
每个股东都有权在年度大会上投票。
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。
C1 adjective /ˈstrɪndʒənt/

stringent

严格
Meaning
strict, precise, and exacting
Example
The government imposed stringent measures during the crisis.
政府在危机期间实施了严格的措施。
C1 noun /ˈseɪɑːns/

seance

灵媒会议
Meaning
A meeting where people attempt to communicate with the spirits of the dead.
Example
They held a seance to contact their late grandmother.
他们举行了灵媒会议，以联系已故的祖母。
B2 adjective /ˈstæt.ɪk/

static

静态
Meaning
Lacking in movement, action, or change; stationary.
Example
Static ideas hinder progress.
静态的想法阻碍了进步。
C1 adjective /səˈnɔːrəs/

sonorous

深沉的声音
Meaning
Deep, full, and rich in sound.
Example
The actor's sonorous voice filled the entire theater.
演员那深沉的声音充满了整个剧院。
C1 verb /ˈsælvɪdʒ/

salvage

挽救
Meaning
To save something from loss, damage, or destruction.
Example
They managed to salvage some goods from the fire.
他们成功地从火灾中挽救了一些货物。
B1 adjective /sɪɡˈnɪfɪkənt/

significant

重要的
Meaning
Sufficiently great or important to be worthy of attention; noteworthy.
Example
Social media has a significant impact on relationships.
社交媒体对人际关系有重要影响。
B1 noun /ˈsʌn.set/

Sunset

日落
Meaning
the time in the evening when the sun disappears below the horizon
Example
The romantic sunset painted the sky in golden colors.
浪漫的日落把天空涂上金色。
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 pronoun /ˈsʌmwʌn/

someone

某人
Meaning
a person, but not specifically known or named
Example
Someone left their umbrella in the hallway.
某人把他们的伞忘在了走廊里。
B2 adverb /ˈsɪmɪlərli/

similarly

类似地
Meaning
in a similar way
Example
Similarly, we can achieve success with dedication and hard work.
以相似的方式，我们可以通过奉献和努力工作取得成功。
B1 noun ˈstrʌɡ.əl

struggle

斗争
Meaning
A forceful or violent effort to get free of restraint or resist attack; a determined effort under difficult circumstances.
Example
The struggle for independence united the nation.
独立斗争使国家团结。
C1 adjective /ˌsuːɪˈsaɪdəl/

Suicidal

自杀的
Meaning
relating to or having thoughts of killing oneself; extremely dangerous or harmful
Example
The reckless driving was suicidal behavior.
鲁莽的驾驶是一种自杀行为。
B1 adjective /ˈsʌm.wʌt/

Somewhat

有点; 稍微; 适度
Meaning
to some extent; rather; moderately
Example
The movie was somewhat interesting but not great.
这部电影有点有趣，但不太棒。
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。
A1 noun /ʃɒp/

shop

商店
Meaning
a place where goods are sold to customers
Example
I need to go to the shop to buy some groceries.
我需要去商店买一些杂货。
A1 adverb /soʊ/

so

如此
Meaning
to such a degree or extent
Example
She was so happy with the gift.
她对礼物感到如此高兴。
B2 noun /ˈsleɪvəri/

slavery

Meaning
the system or state of being owned and forced to work for someone else
Example
Slavery was abolished in most countries in the 19th century.
C1 verb /səbˈsɪst/

subsist

生存
Meaning
To maintain or support oneself, especially at a minimal level.
Example
Many villagers still subsist on fishing and farming.
许多村民仍然依靠捕鱼和农业为生。
B2 verb /ʃrɪŋk/

shrink

缩水
Meaning
to become smaller in size; to draw back in fear
Example
The sweater shrank after washing in hot water.
毛衣在热水中洗后缩水。
C1 adjective /ˈsʌl.ki/

Sulky

脾气坏且沉默; 易怒
Meaning
bad-tempered and sullen; moody
Example
The child became sulky when he couldn't get his favorite toy.
孩子变得脾气坏，因为他无法得到自己最喜欢的玩具。
C1 verb /ʃʌnt/

shunt

转轨
Meaning
to move or turn aside; to push or divert from one track to another
Example
The train was shunted onto a different track.
火车被调到另一条轨道。
B1 adjective /ˈsɛpəreɪtɪd/

separated

分开的
Meaning
divided or disconnected from something else; not together
Example
They have been living in separated houses since the divorce.
自离婚以来，他们一直住在分开的房子里。
B2 phrase ˈsɛvən ˈhæbɪts

seven habits

七个习惯
Meaning
Regular behaviors or actions that are done consistently over time, specifically referring to a set of seven key practices.
Example
Even habits help in maintaining a balanced lifestyle.
即使是习惯也有助于保持平衡的生活方式。
C1 noun /ˈseɪ.tən/

Satan

撒旦
Meaning
the chief evil spirit; the Devil in Christian and Islamic belief
Example
According to religious texts, Satan tempts people to sin.
根据宗教经典，撒旦诱惑人们犯罪。
C1 verb /sɪˈkluːd/

seclude

隔离
Meaning
To keep someone away from other people; to isolate.
Example
The monk chose to seclude himself in the mountains.
僧侣选择在山中独自生活。
C1 adjective /ˈsɜːrpənˌtiːn/

serpentine

蛇形的
Meaning
Having the shape, movement, or qualities of a serpent; winding or twisting.
Example
The road took a serpentine path through the mountains.
这条路穿过山脉，呈蛇形蜿蜒。
B1 adjective /ˈsɒlɪd/

solid

坚固
Meaning
firm and stable in shape; not liquid or fluid
Example
The ground was solid underfoot.
地面在脚下是坚固的。
C1 noun ˈsæŋktɪti

sanctity

神圣
Meaning
The state or quality of being holy, sacred, or saintly; ultimate importance.
Example
The sanctity of life should never be compromised.
生命的神圣性永远不应被妥协。
B1 adjective /ˈsætɪsfaɪd/

satisfied

满意
Meaning
Pleased or content with what has been achieved or received.
Example
He felt satisfied after finishing his project.
完成项目后，他感到满意。
B2 verb /spɪt/

spit

吐口水
Meaning
to force liquid, especially saliva, out of the mouth
Example
He spat on the ground in anger.
他因愤怒在地上吐口水。
A2 noun /ʃer/

Share

份额
Meaning
a portion of something; a part or portion of a larger amount
Example
Each partner received an equal share of the company profits.
每个合作伙伴都收到了公司利润的相等份额。
B2 verb /stæk/

stack

Meaning
to arrange things in a neat pile or one on top of another
Example
He stacked the books neatly on the shelf.
C1 noun/verb /ˈsuː.tʃər/

suture

缝合
Meaning
A stitch or row of stitches holding together the edges of a wound or surgical incision.
Example
The doctor used a suture to close the wound.
医生使用了缝合线来闭合伤口。
B2 noun /ˈsɪmptəm/

symptom

症状
Meaning
a sign or indication of something, especially of an illness
Example
Fever is a common symptom of the flu.
发烧是流感的常见症状。
B2 verb /ˈstʌmbəl/

stumble

绊倒
Meaning
to trip or lose balance while walking or running; to make a mistake or falter
Example
He stumbled on the uneven pavement.
他在人行道上绊倒了。
B1 noun /ˈspiːʃiːz/

Species

物种; 类型
Meaning
a group of living organisms that can reproduce with each other; a type or kind
Example
The Amazon rainforest is home to thousands of animal species.
亚马逊雨林是成千上万动物物种的家园。
C2 verb /sweɪð/

swathe

Meaning
To wrap or cover closely or completely.
Example
She swathed the baby in a soft blanket.
C2 noun /ˌsɪnjuˈɒsɪti/

sinuosity

弯曲性
Meaning
The quality or state of being winding, curving, or having many turns.
Example
The sinuosity of the river made navigation challenging.
河流的弯曲性使得导航变得具有挑战性。
C2 noun /ˈsʌbtrəˌhɛnd/

subtrahend

被减数
Meaning
a number that is to be subtracted from another number
Example
In the equation 10 - 4, the number 4 is the subtrahend.
在等式 10 - 4 中，数字 4 是被减数。
C1 adjective /ˌsuː.pəˈsɒn.ɪk/

Supersonic

比声音的速度更快; 与超过声音速度的速度相关
Meaning
faster than the speed of sound; relating to speeds greater than the speed of sound
Example
The supersonic jet broke the sound barrier.
超音速飞机打破了音障。
A2 noun /ˈsteɪʃən/

station

Meaning
a place where a particular service is provided, especially for transportation
Example
We arrived at the station just in time for the train.
C1 noun səˌsɛp.təˈbɪl.ə.ti

susceptibility

易感性
Meaning
The quality of being likely to be influenced or harmed by a particular thing; vulnerability.
Example
High susceptibility to infections requires extra care.
对感染的高易感性需要额外的护理。
A1 noun /striːt/

street

街道
Meaning
a public road in a city or town, typically with buildings on one or both sides
Example
He walked down the street to the park.
他走在街上去公园。
C1 noun /ˈsaɪ.ən/

scion

后代
Meaning
a descendant of a wealthy, aristocratic, or influential family
Example
He is the scion of a wealthy industrialist family.
他是一个富有的工业家家庭的后代。