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B2 verb, noun, adjective /baʊnd/

bound

有界的 / 受限的
Meaning
To move with large strides or jumps; also refers to being tied, limited, or certain.
Example
The dog bounded across the field with joy.
狗带着快乐跳过了田野。
B2 noun /ˈbɒt.əl.nek/

bottleneck

瓶颈
Meaning
Narrow path or obstruction, a place or situation where flow becomes slow.
Example
The narrow bridge is a major bottleneck during rush hour.
窄桥在高峰期间是一个瓶颈。
A2 noun /brɪk/

brick

砖块
Meaning
A rectangular block of clay or similar material used in building walls and other structures.
Example
The workers laid brick after brick to build the wall.
工人们一块接一块地放砖来建造墙壁。
B2 adjective /ˈbraʊn.ɪʃ/

Brownish

棕色的
Meaning
having a color somewhat like brown; tending toward brown
Example
The old paper had a brownish tint from age.
那张旧纸因岁月的缘故带有棕色的色调。
B2 noun /baɪˈɒɡrəfi/

Biography

传记
Meaning
an account of someone's life written by someone else; the story of a person's life
Example
I'm reading a fascinating biography of Albert Einstein.
我正在阅读一部关于阿尔伯特·爱因斯坦的迷人传记。
C2 verb /bɪˈtəʊkən/

betoken

预示
Meaning
to be a sign or indication of something
Example
Dark clouds betoken an approaching storm.
乌云预示着即将到来的暴风雨。
B1 noun /bʌn/

Bun

小圆包
Meaning
a small round bread roll, often sweet
Example
I bought fresh buns from the bakery this morning.
我今天早上从面包店买了新鲜的小圆包。
A2 noun /ˈbæskɪtbɔːl/

basketball

Meaning
a game played by two teams who try to score points by throwing a ball through a hoop
Example
He loves playing basketball with his friends.
C1 verb /bɪˈstoʊ/

bestow

授予
Meaning
To give or present something as a gift or honor.
Example
The king bestowed honors upon the brave soldiers.
国王授予勇敢的士兵荣誉。
B2 adjective /ˌbaɪəʊdɪˈɡreɪdəbl/

biodegradable

可生物降解的
Meaning
Capable of being decomposed by natural biological processes, typically by bacteria or other living organisms, without causing harm to the environment.
Example
Biodegradable materials break down naturally without harming the environment.
可生物降解的材料自然分解，不会对环境造成伤害。
C1 verb /blɛər/

blare

发出响亮的声音
Meaning
to make a loud, harsh sound
Example
The car horns blared all night.
汽车的喇叭整夜都在响。
C1 adjective /bəˈnɑːl/ or /ˈbeɪnəl/

banal

平庸
Meaning
Lacking originality; boringly obvious and commonplace.
Example
His speech was full of banal clichés.
他的演讲充满了平庸的陈词滥调。
C2 verb /ˈbæstərdaɪz/

bastardize

歪曲
Meaning
to corrupt or debase something by altering it from its original form; to change in a way that reduces quality or purity
Example
Critics argue that the remake bastardized the original novel.
评论家认为这次改编歪曲了原作。
B1 adjective /blɒnd/

blond

Meaning
having light-colored hair, typically pale yellow or golden.
Example
She has long blond hair that shines in the sunlight.
A2 noun ˈbæl.əns

balance

平衡
Meaning
A condition in which different elements are equal or in the correct proportions.
Example
Balance among powers prevents conflicts.
权力之间的平衡可以避免冲突。
C2 noun /ˈbɛlˌwɛðər/

bellwether

趋势引领者
Meaning
A person or thing that leads or indicates a trend.
Example
The company is seen as a bellwether of the technology industry.
该公司被视为科技行业的趋势引领者。
B2 noun /ˌbɛnɪˈfɪʃəri/

beneficiary

受益人
Meaning
a person who receives something, especially money or property, from a will or insurance policy
Example
She is the sole beneficiary of her father’s estate.
她是她父亲遗产的唯一受益人。
A2 noun /ˈbʊkʃɒp/

bookshop

书店
Meaning
a retail store where books are sold
Example
She spent an hour browsing in the small bookshop.
她在那家小书店里逛了一个小时。
C2 noun /breɪ/

brae

山坡
Meaning
A hillside or slope, especially in Scotland.
Example
They climbed up the grassy brae to see the sunset.
他们爬上了长满草的山坡去看日落。
C1 noun /bɜːrθ/

Berth

卧铺; 船、火车或其他交通工具上的睡觉地方
Meaning
a sleeping place in a ship, train, or other vehicle; a place where a ship can dock
Example
I booked an upper berth on the overnight train.
我在夜间列车上预订了一个上铺。
C2 adjective /ˈbræsi/

brassy

张扬的
Meaning
loud and showy in a way that lacks good taste; resembling brass in color or sound
Example
She wore a brassy necklace that caught everyone’s attention.
她戴着一条张扬的项链，吸引了所有人的注意。
B2 noun ˈbɪz.nɪs ˈfaɪ.næns

business finance

商业财务
Meaning
The area of finance that deals with sources of funding and the capital structure of corporations.
Example
Effective business finance enhances profitability.
有效的商业财务提高了盈利能力。
C1 noun /bɒmˈbɑːrdmənt/

bombardment

轰炸
Meaning
a continuous attack with bombs or other projectiles
Example
The city endured a heavy bombardment during the war.
这座城市在战争期间承受了猛烈的轰炸。
C2 verb /bɪˈsmɜːrtʃ/

besmirch

玷污
Meaning
to damage someone's reputation; to make dirty or stained
Example
He tried to besmirch her good name with false rumors.
他试图通过虚假的谣言玷污她的好名声。
C1 verb /ˈbɛkən/

beckon

招手示意
Meaning
to signal or call someone to come closer, often with a gesture; to attract or invite
Example
She beckoned him to come closer with a wave of her hand.
她挥手示意他走近一些。
C1 noun /ˈbʌrə, ˈbʊrə/

borough

区
Meaning
A town, district, or administrative division, especially one with its own local government.
Example
Brooklyn is a borough of New York City.
布鲁克林是纽约市的一个区。
B2 noun /biːm/

beam

光束 / 横梁
Meaning
a ray or shaft of light; a long piece of wood or metal used to support weight
Example
A beam of sunlight entered through the window.
一束阳光穿过窗户。
C2 verb /ˈbaɪfərˌkeɪt/

bifurcate

分成两部分
Meaning
to divide into two branches or parts
Example
The road bifurcates into two separate paths at the hill.
这条路在山丘处分岔成两条分开的路。
C2 verb /breɪz/

braze

焊接
Meaning
To join two pieces of metal by heating and melting a filler metal into the joint.
Example
The mechanic brazed the broken pipe to fix the leak.
机械师通过加热焊接破损的管道来修复泄漏。
A1 noun /bʌs/

Bus

公共汽车
Meaning
a large motor vehicle carrying passengers by road
Example
I take the bus to work every morning.
我每天早上乘公共汽车上班。
B1 noun /bɪərd/

Beard

胡子
Meaning
hair that grows on the chin and lower cheeks of a man's face
Example
He grew a long beard during the winter months.
他在冬天长了一根长胡子。
B1 noun /ˈbaɪbəl/

bible

圣经
Meaning
the Christian scriptures consisting of the Old and New Testaments; also used for any authoritative book
Example
She reads the Bible every morning.
她每天早晨读圣经。
A2 adjective /ˈbroʊkən/

Broken

破损的; 损坏的; 断裂的
Meaning
damaged; not working; fractured
Example
The broken window needs to be replaced immediately.
破损的窗户需要立即更换。
B2 noun /ˈbɒtəni/

botany

植物学
Meaning
the scientific study of plants
Example
She is studying botany at the university.
她在大学里学习植物学。
A1 preposition/adverb/conjunction /bɪˈfɔːr/

before

之前
Meaning
At an earlier time; in front of in order or place.
Example
She arrived before the meeting started.
她在会议开始之前到达。
C2 noun /bɪˈnɪɡnɪti/

Benignity

仁慈；温柔；仁爱或优雅的品质
Meaning
kindness; gentleness; the quality of being benign or gracious
Example
Her benignity towards all people made her beloved by everyone.
她对所有人的仁慈使她受到所有人的喜爱。
C1 noun /ˈbraɪ.dəl/

Bridle

缰绳; 马笼头
Meaning
the headgear used to control a horse, consisting of buckled straps and a bit
Example
The rider adjusted the horse's bridle before mounting for the race.
骑手在上马前调整了马的缰绳。
C2 verb /ˈbeɪɪŋ/

baying

狂吠
Meaning
making a loud, prolonged barking or howling sound, especially of dogs
Example
The baying of the hounds echoed through the forest.
猎犬的叫声在森林中回响。
B1 noun /ˈbæɹɪəz/

barriers

障碍
Meaning
Something that prevents progress or access; obstacles or hindrances.
Example
Language barriers can make communication difficult.
语言障碍可能会使沟通变得困难。
C1 noun /buːn/

boon

恩赐
Meaning
A thing that is helpful or beneficial.
Example
The internet is a boon to modern education.
互联网是现代教育的恩赐。
A1 noun /ˈbɛdruːm/

bedroom

卧室
Meaning
A room used for sleeping in.
Example
The children were playing in the bedroom.
孩子们正在卧室里玩耍。
B2 noun /broʊtʃ/

brooch

Meaning
a decorative jewelry pin that is attached to clothing
Example
She wore a beautiful silver brooch on her jacket.
A2 noun /ˈbraʊzər/

browser

浏览器
Meaning
a software application for accessing information on the World Wide Web.
Example
I use a web browser to search for information online.
我使用网页浏览器在网上查找信息。
C1 noun /ˈbeɪsbɔːrd/

baseboard

踢脚线
Meaning
A narrow board running along the bottom of an interior wall, covering the joint between wall and floor.
Example
The carpenter painted the baseboard white.
木匠把踢脚线涂成了白色。
B2 noun/adjective /ˈbʌmpər/

bumper

保险杠
Meaning
A protective bar at the front or back of a vehicle; also used to describe something unusually large or successful.
Example
The farmer celebrated a bumper harvest this year.
农民今年庆祝了一个丰收的年份。
C1 verb; noun /beltʃ/

belch

打嗝
Meaning
to expel air noisily from the stomach through the mouth; to emit or pour out suddenly and forcefully
Example
After drinking the soda, he belched loudly.
喝了汽水后，他大声打嗝。
C2 noun /ˈbɜːrɡər/

burgher

城市居民 (富裕的中产阶级)
Meaning
A citizen of a town, typically a member of the wealthy middle class.
Example
The burgher was respected as a prosperous merchant in the city.
这个布尔戈被尊敬为城市中的繁荣商人。
A1 preposition, adverb /bɪˈtwiːn/

between

之间
Meaning
at, into, or across the space separating two objects or regions
Example
She sat between her two friends.
她坐在两个朋友之间。
C2 noun /ˈbʊljən/

bullion

金或银的原料
Meaning
Gold or silver in bulk before being coined or made into jewelry.
Example
The bank stores gold bullion in its vaults.
银行将金条储存在它的保险库中。
C2 noun /bɛl/

belle

美丽的女人
Meaning
A beautiful woman, especially the most attractive woman at a gathering.
Example
She was the belle of the ball that evening.
她是那个晚上舞会的美丽女士。
C2 verb /bɪˈliːɡər/

beleaguer

围困, 烦扰
Meaning
to cause difficulties, troubles, or harassment; to surround with military forces
Example
The company was beleaguered by constant complaints from its customers.
该公司因客户不断的投诉而被围困。
B2 noun /braɪb/

Bribe

贿赂
Meaning
a sum of money or something valuable given to someone to persuade them to do something dishonest or illegal
Example
The corrupt official was caught accepting a bribe from the construction company.
那个腐败的官员在接受建筑公司贿赂时被逮捕。
B2 noun /bʌlk/

Bulk

大宗; 大部分;
Meaning
the mass or size of something large; the greater part or majority of something
Example
The bulk of the work was completed before the deadline.
大部分工作在最后期限前完成。
C1 adjective /ˈbʊkɪʃ/

Bookish

爱读书的; 学术的
Meaning
studious; scholarly; devoted to reading and studying
Example
She was known for her bookish nature and love of literature.
她以书本亲和的天性和对文学的热爱而闻名。
A1 interjection /baɪ/

bye

再见
Meaning
used to say goodbye; a short and informal farewell
Example
I said bye to her before leaving.
离开前我对她说了再见。
A2 noun /ˈbɪs.kɪt/

Biscuit

饼干
Meaning
a small, hard, dry cake; a cookie
Example
Children love to eat chocolate biscuits with milk.
孩子们喜欢吃巧克力饼干配牛奶。
C1 adjective /ˈboʊɡəs/

bogus

伪造的
Meaning
false, fake, or not genuine
Example
The police arrested him for using a bogus ID card.
警方因他使用伪造的身份证而逮捕了他。
C2 noun /ˈbroʊmaɪd/

bromide

陈词滥调
Meaning
A trite or unoriginal idea or remark; also a chemical compound of bromine.
Example
His speech was full of old bromides about hard work.
他的演讲充满了关于努力工作的老生常谈。
B1 noun /ˈboʊ.nəs/

Bonus

奖金
Meaning
an amount of money added to wages on a seasonal basis, especially as a reward for good performance
Example
She received a year-end bonus for her excellent work performance.
她因出色的工作表现而获得了年终奖金。
B2 noun /ˈbɜːrdn/

burden

负担
Meaning
a heavy load, especially one that is difficult to carry
Example
The financial burden was too heavy for him to bear.
财政负担对他来说太重了。
C2 noun /ˌbræɡəˈdoʊʃioʊ/

braggadocio

吹嘘行为
Meaning
boastful or arrogant behavior; empty boasting
Example
His endless braggadocio annoyed everyone at the party.
他无休止的吹嘘行为让派对上的每个人都感到厌烦。
C2 verb /bɪˈtroʊð/

betroth

订婚
Meaning
To formally promise to marry someone; to engage.
Example
He was betrothed to the princess at a young age.
他在年轻时就与公主订婚了。
C2 adjective /bəˈθɛt.ɪk/

bathetic

琐碎的情感
Meaning
displaying insincere or trivial emotion; producing an unintended ridiculous effect through sudden change from serious to silly
Example
The movie's ending was unintentionally bathetic rather than tragic.
电影的结局是琐碎的，而不是悲剧性的。
B2 adjective /boʊld/

Bold

大胆; 自信; 勇敢
Meaning
brave; confident; daring
Example
He made a bold decision to start his own business.
他做出了大胆的决定，开始了自己的生意。
C2 adjective /ˈboʊvaɪn/

bovine

与牛相关的
Meaning
relating to cattle; showing a dull or sluggish nature
Example
Her bovine expression revealed no emotions.
她的牛性表情没有表达任何情感。
C2 verb /bɪˈfɒɡ/

befog

使模糊
Meaning
to confuse or make unclear; to cover with fog or mist
Example
His mind was befogged by exhaustion.
他的思维因疲劳而模糊不清。
B2 noun /beɪ/

Bay

海湾
Meaning
a broad inlet of the sea where the land curves inward
Example
The boats are anchored in the bay.
船只停泊在海湾。
C2 adjective /ˈbʌmpʃəs/

bumptious

自负的
Meaning
Arrogantly self-assertive or conceited.
Example
The bumptious student interrupted the teacher several times.
那个自负的学生打断了老师好几次。
C2 noun /ˈbrɪn.dʒəl/

Brinjal

茄子
Meaning
a large purple vegetable that is white inside; also called eggplant
Example
My mother cooked brinjal curry for lunch.
我妈妈做了茄子咖喱作为午餐。
C1 adjective /ˌboʊnəˈfaɪdi/

Bonafide

真正的; 真实的; 合法的
Meaning
genuine; authentic; legitimate
Example
She is a bonafide expert in her field.
她是她领域中的真正专家。
C2 noun /bleɪn/

Blain

水泡
Meaning
an inflammatory swelling or sore on the skin; a blister or pustule
Example
The doctor examined the blain on his arm.
医生检查了他手臂上的水泡。
C2 noun /bəˈnæləti/

banality

平凡
Meaning
The condition of being unoriginal, boring, or obvious; trite remark or quality.
Example
The speech was criticized for its banality and lack of originality.
这篇演讲因其平凡和缺乏原创性而受到批评。
B1 noun /ˈbæŋkɪŋ/

banking

银行业务或银行服务
Meaning
the business or services provided by a bank
Example
Online banking has made financial transactions easier.
在线银行业务使金融交易变得更容易。
C2 adjective /ˈbɪloʊɪŋ/

billowing

波动的
Meaning
Describing something that swells or surges outward in waves or large masses.
Example
She walked through the billowing curtains.
她穿过波动的窗帘走了。
C2 noun /bɜːrˈlɛsk/

burlesque

滑稽模仿剧
Meaning
A humorous and exaggerated imitation of a serious work; a type of theatrical entertainment involving comedy and parody.
Example
The play was a clever burlesque of traditional opera.
这出戏是对传统歌剧的巧妙滑稽模仿。
C1 noun /brɪm/

Brim

边缘; 边沿
Meaning
the projecting edge of a hat; the edge or lip of something
Example
The wide brim of his hat protected him from the scorching sun.
他帽子宽大的边缘保护他免受炽热阳光的照射。
C2 verb /bɪˈleɪbər/

belabor

Meaning
to argue or elaborate on a subject in excessive detail; to attack verbally or physically
Example
The professor belabored the point until the students grew restless.
C2 noun /ˌbuː.ɡənˈvɪl.i.ə/

Bougainvillea

九重葛
Meaning
a tropical climbing plant with colorful bracts surrounding small flowers
Example
The bougainvillea climbing over the garden wall creates a beautiful purple display.
攀爬在花园墙上的九重葛创造了美丽的紫色展示。
C2 adjective /ˈbʌsti/

busty

胸部丰满的
Meaning
having a large or full bust; describing a woman with a prominent chest
Example
The actress was often described as busty in fashion magazines.
这位女演员在时尚杂志中常被形容为胸部丰满的。
A2 noun /brænd/

brand

品牌
Meaning
a type of product manufactured by a company under a particular name
Example
Nike is a popular brand of sportswear.
Nike 是一个受欢迎的运动服品牌。
A2 noun /ˈbɪznəsˌwʊmən/

businesswoman

女商人
Meaning
a woman who works in business, especially one who owns or manages a company
Example
The businesswoman expanded her company into international markets.
这位女商人将她的公司扩展到国际市场。
C2 adjective /ˈbrækɪʃ/

brackish

咸淡水
Meaning
Slightly salty, often describing water that is a mix of fresh and seawater.
Example
The river estuary contained brackish water.
河口含有咸淡水。
C1 noun/adjective/verb /bʌf/

buff

影迷 / 打磨
Meaning
A fan or enthusiast; also to polish or shine something.
Example
He is a movie buff who watches films every weekend.
他是一个电影迷，每个周末都看电影。
A1 noun /biːtʃ/

beach

沙滩
Meaning
An area of sand or small stones beside the sea or a lake.
Example
They spent the day relaxing on the beach.
他们在沙滩上度过了一整天，放松自己。
C1 noun /bɪˈriːvmənt/

bereavement

Meaning
The state of having lost a loved one through death.
Example
She received many letters of sympathy during her time of bereavement.
A2 noun /ˈbeɪsˌbɔːl/

baseball

棒球
Meaning
a sport in which two teams try to score runs by hitting a ball and running around bases
Example
He loves watching baseball games on TV.
他喜欢在电视上观看棒球比赛。
C1 verb /bæsk/

bask

晒太阳
Meaning
to lie in warmth and light; to enjoy something pleasurable
Example
The cat basks in the sunny window.
猫在阳光明媚的窗台上晒太阳。
C2 adjective /ˈbuːtləs/

bootless

无用的
Meaning
Useless or futile; of no benefit.
Example
His bootless attempt to fix the machine only wasted time.
他修理机器的无用尝试只是浪费了时间。
C1 verb /bɪˈreɪt/

berate

训斥
Meaning
to scold or criticize angrily
Example
The teacher berated the student for being late.
老师因迟到而训斥了学生。
B1 adverb /ˈbeɪsɪkli/

basically

基本上
Meaning
in the most important or fundamental way; essentially
Example
Basically, the project was a success despite some small issues.
基本上，尽管有一些小问题，项目仍然是成功的。
C1 verb /bɪˈhɛd/

behead

斩首
Meaning
to cut off a person's or animal's head; to remove the leader or most important part
Example
The historical account describes how the traitor was beheaded as punishment.
历史记载描述了叛徒作为惩罚被斩首的经过。
B2 noun /ˈbeɪ.zəl/

Basil

罗勒
Meaning
an aromatic herb with green leaves used in cooking, especially Italian cuisine
Example
The pasta sauce was flavored with fresh basil.
意大利面酱料中加入了新鲜的罗勒。
C2 noun /ˌbaɪ.oʊ.rɪˌmiː.diˈeɪ.ʃən/

bioremediation

生物修复
Meaning
The use of living organisms to neutralize or remove environmental contaminants.
Example
Bioremediation helps remove toxins from polluted soil.
生物修复帮助清除污染土壤中的毒素。
C2 noun /bəˈkuːl/

Bakul

巴库尔花
Meaning
a fragrant white flower native to South Asia, scientifically known as Mimusops elengi
Example
The sweet fragrance of bakul flowers filled the evening air in the village.
巴库尔花的甜美香气弥漫在村庄的傍晚空气中。
C1 noun /ˈbeɪlɪf/

bailiff

法警
Meaning
An official who keeps order in a court, carries out court orders, or collects debts.
Example
The bailiff asked everyone to rise as the judge entered the courtroom.
当法官进入法庭时，法警要求大家起立。
C1 verb /bɪˈsɛt/

beset

Meaning
to trouble, harass, or attack on all sides
Example
The village was beset by constant floods.
C1 noun /brɛdθ/

breadth

宽度
Meaning
The distance or measurement from side to side; width; a wide range.
Example
The breadth of his knowledge impressed everyone.
他的知识宽度给大家留下了深刻印象。
B2 verb /bɪˈfrɛnd/

befriend

交朋友
Meaning
to act as a friend to someone; to make friends with
Example
She befriended the new student at school.
她在学校与新学生成为了朋友。
C1 noun /beɪn/

bane

祸根
Meaning
A cause of great distress, harm, or annoyance.
Example
Traffic jams are the bane of city life.
交通堵塞是城市生活的祸根。
C2 verb /ˈbraʊˌbiːt/

browbeat

威胁 / 强迫
Meaning
To intimidate or bully someone into doing something
Example
The lawyer tried to browbeat the witness.
律师试图威胁证人。
B2 adjective /bɪˈliːvəbl̩/

believable

可信的
Meaning
Able to be trusted or accepted as true or reasonable.
Example
Her story was so detailed that it sounded believable.
她的故事如此详细，以至于听起来很可信。
C2 noun /ˈbrɪk.bæt/

Brickbat

一块砖块；严厉的批评或谴责
Meaning
a piece of brick, especially one used as a missile; harsh criticism or censure
Example
The angry protesters threw brickbats at the building windows.
愤怒的抗议者将砖块扔向建筑物的窗户。
B2 noun, verb /bəˈfeɪ/ (noun), /ˈbʌfɪt/ (verb)

buffet

Meaning
A meal where guests serve themselves from a variety of dishes arranged on a table; also means to strike repeatedly (as a verb).
Example
We enjoyed a large buffet at the wedding reception.
C2 noun /ˈboʊsən/

boatswain

甲板长
Meaning
a ship's officer in charge of equipment and the crew
Example
The boatswain supervised the sailors on deck.
波茨温监督甲板上的水手。
C1 verb /bɪˈwɪldər/

bewilder

使困惑
Meaning
to cause someone to be confused or puzzled
Example
The complex instructions bewildered the students.
复杂的指令使学生感到困惑。
C2 noun /ˈbɛnɪsən/

benison

祝福
Meaning
A blessing or benefit.
Example
The rain was a benison for the drought-stricken farmers.
这场雨对受旱灾影响的农民来说是一种祝福。
C2 noun /ˌbeɪt ˈnwɑːr/

bete noire

令人讨厌的事物
Meaning
A person or thing that one particularly dislikes or fears.
Example
Grammar has always been his bete noire.
语法一直是他的贝特诺尔。
C1 noun /bɪz/

Biz

生意
Meaning
business (informal); commercial enterprise or activity
Example
He's been in the restaurant biz for twenty years.
他已经在餐饮生意中工作了二十年。
C1 noun /ˈbenɪˌfæktər/

Benefactor

捐赠人; 慈善家; 赞助人
Meaning
a person who gives money or other help to support a person or cause; a patron
Example
The anonymous benefactor donated millions to the hospital.
匿名捐助者向医院捐赠了数百万。
A2 verb /ˈbɑroʊ/

borrow

借
Meaning
to take temporarily with intention to return; to take on loan
Example
Can I borrow your pen for a moment?
我可以借一下你的笔吗？
B1 noun /ˈbʌb.əl/

bubble

气泡
Meaning
a thin sphere of liquid enclosing air or gas; a temporary state of inflated value or excitement
Example
The children chased the bubbles in the air.
孩子们在空中追逐气泡。
A2 adjective /ˈbeɪ.sɪk/

Basic

基本的; 基础的;
Meaning
fundamental; essential; forming the foundation or starting point
Example
Learning basic English grammar is essential for beginners.
学习基本英语语法对初学者来说是必不可少的。
B1 noun /broʊˈʃʊr/

brochure

小册子
Meaning
a small booklet or pamphlet containing information or advertising
Example
The travel agent gave us a brochure about the holiday package.
旅行社的工作人员给了我们一本关于假期套餐的小册子。
B1 noun /bɑːm/

Bomb

炸弹
Meaning
an explosive device designed to cause damage or destruction
Example
The bomb disposal unit carefully defused the explosive device.
炸弹拆除单位小心地引爆了爆炸装置。
A1 adjective /blæk/

Black

黑色
Meaning
having the darkest color; the opposite of white
Example
She wore a beautiful black dress to the party.
她穿了一件漂亮的黑色连衣裙去参加聚会。
C1 verb /ˈbɒɡəl/

boggle

使迷惑
Meaning
to overwhelm or confuse; to be astonished or puzzled by something
Example
The complexity of the puzzle boggled his mind.
这个谜题的复杂性让他的头脑感到困惑。
C2 noun /briːtʃ/

breech

Meaning
The back part of a gun barrel; a position of a baby in the womb where the buttocks or feet come out first at birth.
Example
The rifle was loaded through the breech.
C1 noun /ˈbɔɪənsi/ or /ˈbuːjənsi/

buoyancy

浮力, 快乐
Meaning
The ability to float in a liquid; cheerfulness and optimism.
Example
Her natural buoyancy lifted the mood of the group.
她自然的快乐提升了小组的氛围。
A2 verb /beɪs/

base

基于
Meaning
to use something as a foundation; to establish or locate something
Example
They based their decision on facts.
他们基于事实做出了决定。
A1 verb /bɪˈɡɪn/

begin

开始
Meaning
to start doing something; to commence
Example
I will begin my studies tomorrow.
我明天开始学习。
B2 noun, verb /ˈblɒsəm/

blossom

开花
Meaning
a flower or mass of flowers on a tree or plant; to develop or flourish
Example
The small garden began to blossom in spring.
小花园在春天开始开花。