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B2 noun/verb /skræp/

scrap

碎片 / 丢弃
Meaning
A small piece of something; to discard or get rid of something.
Example
He used a scrap of paper to jot down the number.
他用一小片纸写下了那个号码。
B2 adjective/noun /staʊt/

stout

强壮 / 粗壮
Meaning
Strong, thick, or heavily built; also a kind of dark beer
Example
The stout man lifted the heavy box with ease.
这个强壮的男人轻松地举起了沉重的箱子。
B2 noun /soʊp keɪs/

Soap case

肥皂盒
Meaning
a container used to store soap
Example
She bought a beautiful soap case for the bathroom.
她为浴室买了一个漂亮的肥皂盒。
A2 verb /smel/

smell

闻
Meaning
to perceive odor through the nose; to have an odor
Example
The flowers smell sweet.
花儿闻起来甜美。
C1 adjective /sɔɪld/

soiled

脏的
Meaning
dirty or stained; not clean
Example
His clothes were soiled after playing in the mud.
他在泥巴里玩后，衣服弄脏了。
C2 adjective /spɪk/

Spick

极其干净整洁；完美无瑕
Meaning
extremely clean and neat; immaculate
Example
The house was spick and span after the cleaning.
清洁后，房子变得一尘不染，整洁如新。
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。
A2 verb /səkˈsiːd/

succeed

成功
Meaning
to achieve the desired aim or result; to do well
Example
She worked hard to succeed in her career.
她努力工作，力图在事业中取得成功。
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.
C2 noun /ˈsɜːrfɪt/

surfeit

过量
Meaning
an excessive amount of something
Example
There was a surfeit of food at the festival.
节日上食物过量。
C1 adjective /ˈspaɪn.ləs/

Spineless

缺乏勇气; 意志薄弱; 胆小
Meaning
lacking courage or determination; weak-willed
Example
He was too spineless to stand up for his beliefs.
他太软弱，无法为自己的信仰站出来。
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。
B2 adjective /ˈsɒl.ɪ.ter.i/

Solitary

孤独; 隔离; 单独
Meaning
alone; without companions; single; isolated
Example
He lived a solitary life in the mountains.
他在山中过着孤独的生活。
B2 adjective /ˈsæv.ɪdʒ/

Savage

野蛮的; 残忍的; 未开化的
Meaning
extremely cruel or violent; wild and fierce; uncivilized
Example
The savage attack shocked everyone.
野蛮的攻击震惊了所有人。
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。
A2 adjective /ˈsɛvrəl/

several

几个
Meaning
more than one but not many; a few
Example
Several people attended the meeting yesterday.
几个昨天参加了会议的人。
B1 noun, verb /spoʊk/

spoke

辐条 / 说
Meaning
As a noun, a bar connecting the center of a wheel to its rim; as the past tense of 'speak'.
Example
The bicycle's spoke was bent after the accident.
自行车的辐条在事故后弯曲了。
A2 adjective /skaɪ bluː/

Sky-blue

天蓝色
Meaning
a bright blue color like that of a clear sky
Example
Her sky-blue eyes sparkled in the sunlight.
她的天蓝色眼睛在阳光下闪闪发光。
C1 adjective ˌsɪn.əˈdʒɪs.tɪk

synergistic

协同的
Meaning
Relating to the interaction of elements that when combined produce a greater effect than the sum of their individual effects.
Example
A synergistic effect occurs when nutrients work together.
协同效应发生在营养素共同作用时。
B2 adjective /ˌsen.tɪˈmen.təl/

Sentimental

多愁善感的
Meaning
having tender feelings; being emotional about memories or experiences
Example
She became sentimental when looking at old family photographs.
她看着旧的家庭照片时变得多愁善感。
C1 adjective ˌsɪmbɪˈɒtɪk

symbiotic

共生的
Meaning
Involving interaction between two different organisms living in close physical association.
Example
The relationship between the bee and the flower is symbiotic.
蜜蜂和花朵之间的关系是共生的。
B2 noun /ˈsuːpəvaɪzə(r)/

supervisor

监督员
Meaning
a person who manages or directs the work of others
Example
The supervisor checked the progress of each employee.
主管检查了每个员工的进展。
A1 adjective /ˈspɛʃəl/

special

特别
Meaning
different from what is usual; better or greater than normal
Example
This gift is very special to me.
这份礼物对我来说非常特别。
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。
C1 noun /suˈpriː.mə.si/

Supremacy

至高无上；最高权力或权威
Meaning
the state of being supreme; highest authority or power
Example
The country established naval supremacy in the region.
该国在该地区建立了海军至高无上的地位。
C1 noun /ˈʃeɪvɪŋ/

shaving

剃须
Meaning
the act of removing hair with a razor; a thin strip or piece shaved from something
Example
He bought a new cream for shaving.
他买了一款新的剃须膏。
B2 noun /ˌspɛsɪfɪˈkeɪʃən/

specification

规格
Meaning
a detailed description or assessment of something
Example
The product specification includes all the necessary details.
产品规格包括所有必要的细节。
C1 noun/verb /sleɪt/

slate

板岩 / 安排
Meaning
a fine-grained rock used for roofing or writing; to schedule or designate for a task
Example
The meeting is slated for next Monday.
会议定于下周一举行。
B1 noun /sɒk/

sock

Meaning
a piece of clothing worn on the foot and lower part of the leg.
Example
He put on a pair of clean socks before leaving the house.
B2 adjective /ˈstɜːrdi/

sturdy

坚固
Meaning
strongly and solidly built; not easily weakened
Example
The carpenter made a sturdy wooden table.
木匠做了一张坚固的木桌。
B2 noun səˈsteɪnəbl dɪˈvɛləpmənt

Sustainable Development

可持续发展
Meaning
Development that meets present needs without compromising the ability of future generations to meet their own needs.
Example
Eco-tourism contributes to sustainable development in local communities.
生态旅游有助于当地社区的可持续发展。
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。
B2 noun /ˈsɪɡ.nə.tʃər/

Signature

签名
Meaning
a person's name written in their own handwriting as identification or authorization
Example
Please put your signature at the bottom of the document.
请在文件底部签名。
B2 noun /soʊl/

Sole

脚底; 鞋底
Meaning
the bottom part of the foot; the bottom part of a shoe
Example
I have a blister on the sole of my foot.
我的脚底有个水泡。
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。
B2 verb /skoʊld/

scold

责骂
Meaning
to criticize angrily; to rebuke
Example
The teacher scolded the students for being late.
老师因为学生迟到而责骂他们。
B2 noun /stæns/

stance

立场
Meaning
a person's attitude, opinion, or position on an issue
Example
The company took a strong stance on environmental protection.
公司在环境保护问题上采取了强硬立场。
B2 noun, verb /slænt/

slant

偏见观点
Meaning
A particular point of view; to slope or lean in a particular direction.
Example
The article had a political slant.
文章有政治倾向。
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 adjective /ˈsliːzi/

sleazy

低级的, 肮脏的, 或质量差的
Meaning
morally low, dirty, or cheap in quality
Example
He avoided the sleazy nightclub downtown.
他避免了市中心的低级夜店。
B2 verb, noun /stæb/

stab

刺伤
Meaning
to pierce or wound with a pointed weapon or object
Example
He was stabbed in the back during the altercation.
他在争执中背部被刺伤。
C1 verb /sərˈmaɪz/

surmise

推测
Meaning
to suppose something is true without having evidence
Example
She surmised that he was not coming to the meeting.
她推测他不会来参加会议。
A2 adjective /ʃaɪ/

Shy

害羞的; 腼腆的
Meaning
nervous or timid in the company of other people
Example
The shy student rarely spoke up in class discussions.
害羞的学生很少在课堂讨论中发言。
C1 noun /ˈspɪnstər/

spinster

未婚女性
Meaning
An unmarried woman, often one who is older and considered unlikely to marry
Example
The novel featured a kind-hearted spinster who cared for the village children.
小说中有一位心地善良的未婚女性，她照顾着村里的孩子们。
C1 noun /ˈstætʃuːt/

statute

法律
Meaning
A written law passed by a legislative body.
Example
The new statute protects workers' rights.
新法律保护工人的权利。
C1 adjective /ˈsɒnɪk/

sonic

音速的
Meaning
Relating to or involving sound waves or speed of sound.
Example
The jet created a loud boom when it broke the sonic barrier.
喷气机突破声速壁垒时发出了巨大的爆炸声。
C1 noun ˌsteɪbəlaɪˈzeɪʃən

stabilization

稳定化
Meaning
The process of making or becoming stable.
Example
The stabilization of the structure was essential after the earthquake.
地震后，结构的稳定化至关重要。
A2 verb /sɜːrtʃ/

search

搜索
Meaning
to look carefully for someone or something; to examine thoroughly
Example
The police searched the house for evidence.
警察搜查了房子以寻找证据。
C2 adjective /ˈskʌr.ɪ.ləs/

scurrilous

恶意中伤的
Meaning
Using or expressed in coarse, abusive, or slanderous language.
Example
The politician faced criticism for his scurrilous remarks about his opponent.
那位政治家因其对对手的恶意中伤言论而面临批评。
C1 verb /ˈsætəˌraɪz/

satirize

讽刺
Meaning
to mock or criticize something using satire
Example
The play satirizes the greed of modern corporations.
这部剧讽刺了现代公司的贪婪。
B2 noun/verb /swɑːmp/

swamp

沼泽
Meaning
An area of low-lying, uncultivated ground where water collects; a bog or marsh.
Example
The village was built near a swamp.
村庄建在一个沼泽附近。
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。
C1 verb /ˌsuːpərɪmˈpoʊz/

superimpose

叠加
Meaning
to place one thing on top of another so that both can be seen
Example
The editor superimposed text over the image.
编辑将文本叠加在图片上。
A2 noun /ˈʃaʊər/

shower

Meaning
a brief fall of rain or snow or a device for taking a bath or washing oneself
Example
After the workout, I took a quick shower to refresh myself.
B2 adjective /ˈʃæl.oʊ/

Shallow

浅薄; 不深; 缺乏深入知识
Meaning
not deep; superficial; lacking depth of knowledge
Example
The shallow water is perfect for children to play.
浅水适合孩子们玩耍。
C1 verb /ʃʌn/

Shun

回避
Meaning
to deliberately avoid or stay away from someone or something
Example
He shuns public attention and prefers privacy.
他避开公众注意并偏爱隐私。
A2 verb /ʃeɪk/

shake

摇动
Meaning
to move quickly back and forth; to tremble
Example
The earthquake made the building shake.
地震让建筑物摇动。
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 /ˌsuːpərˈnuːmərɛri/

supernumerary

额外的
Meaning
Exceeding the usual number; extra or unnecessary.
Example
The play included several supernumerary actors to fill the background scenes.
这出戏包含了几个额外的演员来填充背景场景。
A2 noun /ʃiːp/

sheep

羊
Meaning
a farm animal with thick wool that is raised for its wool, meat, and milk
Example
The farmer keeps a large flock of sheep.
农民养着一大群羊。
B1 adjective /ʃeɪpt/

shaped

成形的
Meaning
having a particular form or appearance
Example
The sculpture was shaped like a human figure.
雕塑被塑造成一个人形。
B1 adjective ˈsen.sɪ.tɪv

sensitive

敏感
Meaning
Quick to detect or respond to slight changes, signals, or influences.
Example
Sensitive systems require precise handling.
敏感的系统需要精确的处理。
B2 noun /səkˈsɛʃ.ən/

succession

生态演替
Meaning
The process of ecological change in which one community of organisms is gradually replaced by another.
Example
Forest succession occurs when old ecosystems are replaced by new ones.
森林演替发生在旧的生态系统被新的生态系统取代时。
C1 noun /ˈstreɪnər/

Strainer

筛子
Meaning
a device having holes punched in it or made of crossed wires for separating solid matter from a liquid
Example
Use a strainer to drain the pasta water.
使用筛子把意大利面水倒掉。
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。
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。
C1 noun /skraɪb/

scribe

抄写员
Meaning
a person who writes documents, especially in ancient times; a professional copyist
Example
In ancient Egypt, scribes recorded important events.
在古埃及，抄写员记录了重要的事件。
B1 noun /steɪk/

steak

牛排
Meaning
a thick slice of meat, typically beef, cooked by grilling or frying
Example
He ordered a grilled steak with vegetables.
他点了一块配蔬菜的烤牛排。
C2 noun /sɜːrˈsiːs/

surcease

停止
Meaning
a temporary or final ending or stopping of something
Example
The noise finally came to a surcease after midnight.
噪音在午夜后终于停止了。
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。
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。
C2 noun /ˈsɒfɪst/

sophist

诡辩家
Meaning
a person who uses clever but misleading arguments
Example
He was dismissed as a sophist who twisted facts to win debates.
他被当作一个诡辩家，扭曲事实来赢得辩论。
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 noun /staɪn/

stein

啤酒杯
Meaning
A large beer mug, typically made of glass or stoneware.
Example
He raised his stein to toast his friends.
他举起了他的啤酒杯，为他的朋友们祝酒。
A1 verb /sɔ/

saw

用锯子切
Meaning
to cut with a saw; to use a cutting tool
Example
The carpenter saws the wood into pieces.
木匠将木头切成小块。
C1 noun /ˈsɔːjər/

Sawyer

锯木工
Meaning
a person who saws wood, especially as an occupation
Example
The skilled sawyer cut the logs into planks.
熟练的锯木工将原木锯成木板。
B2 adjective /ˈsoʊbər/

Sober

清醒的；严肃而深思的；适度的
Meaning
not affected by alcohol; serious and thoughtful; moderate
Example
He remained sober throughout the celebration.
他在整个庆典期间保持清醒。
C1 noun /ˈʃæmbəlz/

shambles

一片混乱
Meaning
a state of complete disorder or ruin
Example
After the storm, the whole town was in shambles.
风暴过后，整个城镇陷入了一片混乱。
B2 noun /səˈraʊn.dɪŋz/

surroundings

周围环境
Meaning
The area around a person, place, or thing.
Example
She quickly adapted to her new surroundings.
她迅速适应了她的新环境。
A2 noun ˈsɜːrvɪs

service

服务
Meaning
An act of helping or doing work for someone.
Example
True education promotes the value of service to others.
真正的教育促进了对他人服务的价值。
C1 adjective səˈsaɪ.ə.təl

societal

社会的
Meaning
Relating to society or social relationships.
Example
Societal benefits of space tourism are under debate.
太空旅游的社会效益正在辩论中。
A2 noun ˈsaɪən.tɪst

scientist

科学家
Meaning
A person who is studying or has expert knowledge of one or more of the natural or physical sciences.
Example
The scientist proposed data-driven reforms.
这位科学家提出了基于数据的改革。
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。
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。
B2 noun ˈsəʊ.ʃəl ˈdʒʌs.tɪs

social justice

社会正义
Meaning
Justice in terms of the distribution of wealth, opportunities, and privileges within a society.
Example
Social justice ensures equality of opportunity.
社会正义确保平等的机会。
C1 noun /ˌsʌb.stɪˈtjuː.ʃən/

substitution

替换
Meaning
the action of replacing someone or something with another
Example
The substitution of the old system with the new one was difficult.
将旧系统替换为新系统是困难的。
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。
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。
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。
A2 adjective /ˈspænɪʃ/

spanish

西班牙语
Meaning
relating to Spain or the Spanish language
Example
She is fluent in Spanish and French.
她能流利地讲西班牙语和法语。
A2 verb /saɪn/

sign

签名
Meaning
to write your name on something to show agreement or approval; to make a gesture with meaning
Example
Please sign the contract at the bottom of the page.
请在页面底部签署合同。
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。
C1 adjective /suːˈpɜːr.flu.əs/

superfluous

多余的
Meaning
Unnecessary, especially through being more than enough.
Example
His speech contained too many superfluous details.
他的演讲包含了太多多余的细节。
C1 adjective /səkˈsɪŋkt/

succinct

简洁
Meaning
Briefly and clearly expressed; characterized by clear, precise expression in few words.
Example
His speech was succinct and impactful.
他的演讲简洁且有影响力。
C1 verb /ˈstɪntɪŋ/

stinting

吝啬地给
Meaning
to supply sparingly or with restrictions
Example
He never stinting his efforts to help the poor.
他从不吝啬自己的努力来帮助穷人。
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。
C1 noun /stɑːr ˈæn.ɪs/

Star Anise

八角星
Meaning
star-shaped spice pod with a licorice-like flavor used in cooking
Example
She added star anise to the soup for aromatic flavor.
她在汤里加入了八角星，增添了香气。
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。
A2 adverb /ˈsɪə.ri.əs.li/

seriously

认真地
Meaning
in a solemn or thoughtful manner
Example
She took the matter very seriously.
她非常认真地对待了这个问题。
B2 noun /stəˈtɪstɪks/

statistics

统计
Meaning
the practice or science of collecting and analyzing numerical data
Example
The statistics showed an increase in the number of users last year.
统计数据显示，去年用户数量有所增加。
C2 noun /sʌnd raɪs/

Sunned rice

晒干的米
Meaning
Rice that has been dried in the sun; parched rice
Example
The farmers spread the sunned rice on mats to dry completely.
农民们将晒干的米铺在垫子上，让它完全干燥。
B2 adjective ˈskɒl.ə.li

scholarly

学术的
Meaning
Having or showing great knowledge or learning; academic in approach or method.
Example
He wrote a scholarly article on ancient philosophy.
他写了一篇关于古代哲学的学术文章。
C2 adjective /ˈsiːmi/

seamy

堕落的，肮脏的
Meaning
Morally degraded, unpleasant, or sordid.
Example
The novel reveals the seamy side of city life.
这本小说揭示了城市生活的肮脏一面。
C1 noun /ˈsʌnˌdaʊn/

sundown

日落
Meaning
the time in the evening when the sun goes below the horizon
Example
We planned to reach the village before sundown.
我们计划在日落之前到达村庄。
C1 verb /ˈskævɪndʒ/

scavenge

在垃圾中寻找
Meaning
to search through waste or discarded material to find useful items
Example
The children scavenged for food in the garbage dump.
孩子们在垃圾堆里找食物。
B2 noun sɛlf rɪˈlaɪ.əns

self-reliance

自给自足
Meaning
Reliance on one's own powers and resources rather than those of others; independence.
Example
Self-reliance helps build confidence.
自给自足帮助建立自信。
B2 verb /ˈʃʌfəl/

shuffle

Meaning
to walk by dragging one's feet along or without lifting them fully; to mix or rearrange
Example
He shuffled the cards before dealing them.
C1 adjective /ˈskeɪðɪŋ/

scathing

尖锐的批评
Meaning
severely critical; harshly scornful
Example
The critic wrote a scathing review of the movie.
评论家写了一篇尖锐的电影评论。
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。
B2 adjective /ˌsɪstəˈmætɪk/

systematic

系统的
Meaning
Done or acting according to a fixed plan or system; methodical.
Example
The company took a systematic approach to solving the issue.
公司采取了系统的方法来解决问题。
A2 noun /spɒt/

spot

地点
Meaning
a particular place or position
Example
I found a great spot for a picnic in the park.
我在公园里找到了一个很好的野餐地点。
C2 adjective /ˈsɛpərəbəl/

separable

可分离的
Meaning
Capable of being separated or divided.
Example
The two issues are separable and should be discussed independently.
这两个问题是可分离的，应该独立讨论。
B1 noun /swɒn/

Swan

天鹅
Meaning
a large waterbird with a long curved neck and usually white plumage
Example
The elegant swan glided silently across the water.
那只优雅的天鹅静静地滑过水面。
C1 noun /ˌsæl.ɪ.naɪˈzeɪ.ʃən/

salinization

盐分增加
Meaning
The process of increasing salt content in soil.
Example
Excessive irrigation can cause salinization of farmland.
过度灌溉可能导致农田盐分增加。
B2 verb ˈsiːlɪŋ

sealing

封闭，密封
Meaning
The action of closing or blocking something to prevent entry or escape.
Example
Sealing cracks in the walls can prevent pests from entering.
密封墙壁上的裂缝可以防止害虫进入。
B1 noun /ˈsɜr.fɪs/

Surface

表面; 上层
Meaning
the outside part or uppermost layer of something
Example
The submarine emerged to the surface of the ocean.
潜水艇浮出海面。
C2 noun /ˈslʌɡərd/

sluggard

懒汉
Meaning
A lazy, sluggish person.
Example
The sluggard refused to get out of bed even at noon.
懒汉拒绝在中午起床。
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。
C2 noun /sɪˈmɪlɪtjuːd/

Similitude

相似; 类似
Meaning
the quality or state of being similar; resemblance
Example
The similitude between the two paintings suggested they were by the same artist.
这两幅画之间的相似性表明它们是由同一位艺术家创作的。
C1 noun /ˌsɒl.jʊˈbɪləti/

solubility

溶解度
Meaning
The ability of a substance to dissolve in a solvent.
Example
The solubility of salt in water is high.
盐在水中的溶解度很高。
B2 noun /slʌm/

Slum

贫民窟
Meaning
a poor urban area with substandard housing and squalid conditions
Example
The government is working to improve conditions in the slum.
政府正在努力改善贫民区的条件。