ballast
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C2 noun /ˈbælæst/

ballast

压舱物
Meaning
heavy material used to stabilize a ship or vehicle
Example
The ship was loaded with ballast to remain steady in the storm.
船只装载了压舱物,以便在风暴中保持稳定。
B1 adverb /ˈbraɪtli/

brightly

明亮地
Meaning
in a way that gives off a lot of light; in a vivid, cheerful, or intelligent manner
Example
The stars shone brightly in the clear night sky.
星星在清澈的夜空中明亮地闪耀。
B2 verb /boʊlt/

bolt

突然跑掉; 用螺栓固定某物
Meaning
To move suddenly and quickly; also to fasten something with a bolt.
Example
The horse bolted from the stable after hearing a loud noise.
马在听到一声大响后从马厩冲了出去。
A1 verb (past participle of 'bear'), adjective /bɔːrn/

born

出生
Meaning
To come into life; brought into existence.
Example
He was born in Dhaka in 1995.
他于1995年在达卡出生。
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。
B1 verb /ˈbrɔːdˌkæst/

broadcast

广播
Meaning
to transmit a program or information by radio, television, or online media
Example
The match was broadcast live on television.
比赛通过电视现场直播。
C1 adjective ˌbjʊə.rəˈkræt.ɪk

bureaucratic

官僚的
Meaning
Involving or characterized by complex rules and procedures that can delay the achievement of goals.
Example
Bureaucratic red tape often delays project approvals.
官僚主义的繁文缛节经常延误项目审批。
C1 verb /bɪˈhoʊld/

behold

看见;目睹
Meaning
to see or observe something, especially something remarkable or impressive
Example
She stood quietly to behold the sunrise over the hills.
她静静地站着,目睹山上的日出。
C2 noun /ˌbluː ˈblʌd/

Blue-blood

蓝血
Meaning
a person of noble birth; aristocrat
Example
She came from a family of blue-bloods with centuries of royal heritage.
她来自一个拥有数百年王室遗产的蓝血家族。
C1 verb /bɔːk/

balk

拒绝
Meaning
to hesitate or refuse to proceed or comply
Example
She balked at signing the contract without reading it fully.
她犹豫着没有完全阅读合同就签署了。
C2 noun /boʊ/

beau

男友
Meaning
a male admirer or boyfriend; a fashionable young man
Example
She arrived at the party with her beau.
她和她的男友一起到达了派对。
B2 noun ˈbluː.prɪnt

blueprint

详细规划
Meaning
A detailed plan or framework for a work or project, a pre-planned structure.
Example
The architect presented a blueprint for the new building.
建筑师为新建筑提出了详细规划。
B2 noun /ˈbætʃələr/

Bachelor

单身汉; 拥有大学学位的人
Meaning
an unmarried man; a person who holds a first degree from a university
Example
He remained a bachelor all his life and earned a bachelor's degree in engineering.
他一生都保持单身,并获得了工程学位。
A1 noun /bɒks/

Box

盒子
Meaning
a container with flat sides and a lid, used for storing or carrying things
Example
She put her toys in the wooden box.
她把玩具放进木盒里。
B2 verb /briːd/

breed

繁殖, 养育
Meaning
to produce young animals; to reproduce; to keep animals for producing young
Example
They breed horses on their farm.
他们在他们的农场上繁殖马。
B2 adjective /ˈbaɪəst/

Biased

偏见
Meaning
showing prejudice for or against someone or something unfairly
Example
The judge was accused of being biased against the defendant.
法官被指控对被告有偏见。
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 verb /bɪˈkɑːm/

becalm

平静
Meaning
to make calm or still; to deprive a sailing vessel of wind
Example
The captain tried to becalm the anxious crew.
船长试图安抚焦虑的船员。
C2 verb /bɪˈstruː/

bestrew

散布
Meaning
To scatter or cover something with objects or substances.
Example
The ground was bestrewn with autumn leaves.
地面上撒满了秋天的叶子。
C1 adjective /ˈbleɪtənt/

blatant

明显的
Meaning
done openly and unashamedly; obvious and offensive
Example
The company's blatant disregard for safety regulations angered the public.
公司对安全规定的公然蔑视激怒了公众。
B2 noun /ˈbel.i/

Belly

肚子
Meaning
the front part of the human trunk below the ribs, containing the stomach and bowels; abdomen
Example
The baby kicked in her belly during pregnancy.
怀孕期间,宝宝踢了她的肚子。
C1 noun /ˈbʊl.ək/

Bullock

牛犊
Meaning
a young bull; a castrated bull used for farm work
Example
The farmer used a bullock to plow the field.
农民用牛犊来耕地。
C1 noun /ˈbrɛvɪti/

brevity

Meaning
Concise and exact use of words in writing or speech.
Example
The brevity of the speech kept the audience engaged.
B2 noun/verb /briːtʃ/

breach

违反
Meaning
A violation or breaking of a law, agreement, or code of conduct; an act of breaking or failing to observe a law, agreement, or code of conduct.
Example
The company faced a breach of data security.
该公司面临数据安全的违反。
B2 noun ˈbaɪ.əs

bias

偏见, 偏袒
Meaning
Prejudice in favor of or against one thing, person, or group compared with another, usually in a way considered to be unfair.
Example
The judge must remain free from bias.
法官必须保持公正。
C1 adjective /bəˈroʊk/

baroque

巴洛克风格
Meaning
relating to a highly ornate and extravagant style of art, architecture, or music from the 17th and early 18th centuries; excessively elaborate or complex
Example
The church was decorated in a baroque style with intricate details.
教堂以复杂的巴洛克风格装饰,细节繁复。
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。
C1 noun/verb /ˈbæntər/

banter

打趣
Meaning
playful and friendly exchange of teasing remarks
Example
The colleagues enjoyed some light banter during the meeting.
同事们在会议期间享受了一些轻松的班特。
C1 noun /ˈbɪtər ɡɔːrd/

Bitter Gourd

苦瓜
Meaning
a green, bumpy vegetable with a very bitter taste, known for its medicinal properties
Example
Bitter gourd is excellent for controlling blood sugar levels.
苦瓜对于控制血糖水平非常有效。
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。
A1 noun, verb /baɪk/

bike

自行车
Meaning
a bicycle or motorcycle; to ride a bicycle
Example
He biked to school every day.
他每天骑自行车去学校。
C2 verb /bɪˈsmɪər/

besmear

弄脏
Meaning
to smear or cover with a sticky or dirty substance; to soil
Example
His clothes were besmeared with mud.
他的衣服沾满了泥巴。
C2 adjective /blɑːˈzeɪ/

blase

冷漠, 不感兴趣
Meaning
unimpressed or indifferent to something because it has been experienced so often before
Example
After years of luxury travel, she felt blase about another trip to Paris.
经过多年的奢华旅行,她对再次前往巴黎的旅行感到漠不关心。
A1 noun /bred/

Bread

面包
Meaning
a food made from flour, water, and yeast mixed together and baked
Example
She bought fresh bread from the bakery.
她从面包店买了新鲜的面包。
C2 noun /bʊr/

Boor

粗人; 粗鲁的人
Meaning
a rough and bad-mannered person; someone who lacks refinement or culture
Example
The wealthy businessman was actually a boor who showed no respect for others.
那位富有的商人实际上是一个粗人,根本没有对别人表示尊重。
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。
C1 noun /baɪl/

Bile

胆汁
Meaning
a bitter greenish-brown alkaline fluid that aids digestion and is secreted by the liver and stored in the gallbladder
Example
The liver produces bile to help digest fats.
肝脏产生胆汁来帮助消化脂肪。
C2 adjective /bɪˈfɒɡd/

befogged

困惑的, 模糊的
Meaning
Confused or clouded in mind; made unclear like being surrounded by fog.
Example
His mind felt befogged after the long and exhausting meeting.
在漫长而令人疲惫的会议后,他的思维感到困惑。
B2 adjective /ˈbʌmpi/

Bumpy

崎岖不平的;颠簸的
Meaning
having an uneven surface; rough; jolting
Example
The bumpy road made the car ride very uncomfortable.
颠簸的路让汽车的行驶变得非常不舒服。
B1 verb /bɜːrst/

burst

爆裂
Meaning
to break open suddenly; to be full of something
Example
The balloon bursts with a loud pop.
气球突然爆炸发出响亮的声音。
B2 noun bækˈtɪə.ri.ə

bacteria

细菌
Meaning
A member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus.
Example
Specialized bacteria aid in waste decomposition.
专门的细菌有助于废物分解。
B2 noun /ˈbɒdiɡɑːrd/

bodyguard

保镖
Meaning
a person employed to protect someone from harm
Example
The celebrity arrived with her bodyguard.
那位名人带着她的保镖到达了。
B2 noun /ˈbæŋkrʌptsi/

bankruptcy

破产
Meaning
the state of being unable to pay debts owed, declared by a legal process
Example
The company declared bankruptcy after months of financial struggles.
公司在经历了几个月的财务困难后宣布破产。
C1 noun /brəˈzɪər/

Brassiere

胸罩
Meaning
a woman's undergarment designed to support the breasts
Example
She bought a comfortable brassiere for daily wear.
她买了一件舒适的胸罩,适合日常穿着。
C2 adjective /bruːsk/ or /brʌsk/

brusque

粗暴
Meaning
abrupt or blunt in manner or speech, often seen as rude
Example
His brusque reply ended the conversation.
他那粗暴的回答结束了谈话。
B1 verb /briːð/

breathe

呼吸
Meaning
To take air into the lungs and send it out again.
Example
It was hard to breathe in the smoky room.
在烟雾弥漫的房间里呼吸很困难。
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。
B2 noun /ˈbeə.rər/

Bearer

持有者;文件持有者
Meaning
a person who carries or brings something; holder of a document
Example
The bearer of this message must deliver it quickly.
这个信息的持有者必须快速送达它。
C2 noun /blæk ˈkɑːr.də.məm/

Black Cardamom

黑豆蔻
Meaning
a large aromatic spice pod with a smoky flavor, commonly used in Indian and Middle Eastern cooking
Example
Add black cardamom to the curry for a rich, smoky flavor.
在咖喱中加入黑豆蔻,增添丰富的烟熏味。
A2 noun /ˈbʊkstɔːr/

bookstore

书店
Meaning
a shop where books are sold
Example
She spent an entire afternoon browsing in the bookstore.
她整个下午都在书店里逛。
C2 adjective /ˈbrætɪʃ/

brattish

任性
Meaning
acting like a spoiled child; behaving in an annoying, self-centered way
Example
The brattish boy threw a tantrum when he didn’t get his toy.
那个任性的男孩因为没有得到玩具而发脾气。
C1 adjective /ˈbɒt.əl ɡriːn/

Bottle-green

瓶绿色
Meaning
a dark green color similar to that of a green glass bottle
Example
She wore a beautiful bottle-green dress to the evening party.
她穿了一件漂亮的瓶绿色连衣裙参加晚宴。
C2 adjective /ˌbækəˈneɪliən/

bacchanalian

与酗酒相关的
Meaning
Characterized by or involving drunken revelry.
Example
The students threw a bacchanalian party after the exams.
学生们在考试后举办了一场与酗酒相关的派对。
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。
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。
A2 noun /boʊl/

Bowl

Meaning
a round, deep dish or basin used for food or liquid
Example
She served the soup in a large ceramic bowl.
她把汤端到一个大陶瓷碗里。
C2 noun /bəˈθɪm.ə.tri/

bathymetry

海洋测深学
Meaning
The measurement of depth of water in oceans, seas, or lakes.
Example
Bathymetry is essential for understanding oceanic topography.
海洋测深学对于理解海洋地形至关重要。
C2 verb /ˈbændi/

bandy

Meaning
To pass (words, ideas, or gossip) back and forth in a casual or argumentative way.
Example
They bandied jokes across the table.
B1 noun /bɪˈheɪ.vjər/

Behaviour

行为
Meaning
the way a person or animal acts or conducts themselves
Example
His behaviour at the meeting was very professional.
他在会议上的行为非常专业。
C2 adjective /ˈbʌmblɪŋ/

bumbling

笨拙
Meaning
Acting in a clumsy, awkward, or confused way.
Example
The bumbling waiter spilled the drinks on the table.
那个笨拙的服务员把饮料撒在桌子上。
C2 noun /ˈbɔːbəl/

bauble

小饰品
Meaning
A small, decorative trinket or ornament, often of little value.
Example
She wore a shiny bauble around her neck.
她脖子上戴着一个闪亮的小饰品。
C1 noun /bəˈrɑːʒ/

barrage

弹幕或快速攻击
Meaning
a concentrated outpouring of questions, criticisms, or blows; a rapid, continuous attack
Example
The politician faced a barrage of tough questions from reporters.
政治家面对记者们一连串尖锐的问题。
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。
C1 verb/noun ˈbuːt.stræp

bootstrap

通过使用个人资源而非外部资金启动并发展一个企业
Meaning
To start and develop a business using personal resources without external funding.
Example
He bootstrapped his company with minimal resources.
他用最小的资源启动了自己的公司。
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。
C1 adjective /ˈbleɪmləs/

blameless

无辜
Meaning
innocent of wrongdoing; not deserving blame
Example
She remained calm and blameless throughout the investigation.
她在整个调查过程中保持冷静和无辜。
C2 noun /ˈbrɪɡ.ənd/

brigand

强盗
Meaning
A member of a gang that ambushes and robs people in forests or mountains; a bandit.
Example
The travelers were attacked by brigands in the mountains.
旅行者在山中被强盗袭击。
C1 adjective /ˈbaɪtɪŋ/

Biting

咬; 刺骨寒冷; 尖锐的批评
Meaning
extremely cold; sharply critical or harsh
Example
The biting cold made everyone shiver.
刺骨的寒冷让所有人都颤抖了。
A2 noun, verb /bɑːr/

bar

酒吧, 阻止
Meaning
a counter where drinks are served; to prevent or block
Example
They decided to meet at the bar after work.
他们决定下班后在吧见面。
B2 verb/noun /buː/

boo

Meaning
To show disapproval by shouting 'boo'; or a sound made to surprise or scare.
Example
The audience began to boo the bad performance.
B2 noun ˈbleɪzə

blazer

西装外套
Meaning
A coloured jacket worn by members of a club, team, or school as part of a uniform.
Example
He looked sharp in his navy blue blazer at the event.
他在活动中穿着海军蓝色的西装外套,看起来很时尚。
A2 noun /ˈbæskɪt/

basket

篮子
Meaning
a container made of woven materials used for carrying or storing things
Example
She carried the apples in a basket.
她把苹果放在篮子里。
B2 noun /broʊtʃ/

brooch

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

Balsam

香脂花
Meaning
a flowering plant with colorful blooms that often open in the evening; also refers to aromatic resin
Example
The garden balsam flowers bloomed beautifully in various shades of pink and purple.
花园中的香脂花以粉红色和紫色的不同色调美丽地盛开。
B2 noun /bɪzˈnɛs sʌˈsɛs/

business success

商业成功
Meaning
The achievement of desired outcomes in business operations, typically measured by profitability, growth, and sustainability.
Example
Innovation drives business success.
创新推动商业成功。
A1 verb /brɪŋ/

bring

带来
Meaning
to carry or take something to a place; to come with something
Example
Please bring your books to class tomorrow.
请明天把你的书带到课堂。
B2 adjective /ˌben.ɪˈfɪʃ.əl/

beneficial

有益的
Meaning
Resulting in good; favorable or advantageous.
Example
Eye rubbing can be beneficial in moderation.
适度地揉眼睛是有益的。
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。
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。
C2 noun /ˌbækəˈneɪliə/

bacchanalia

纵酒狂欢
Meaning
A Roman festival of Bacchus celebrated with dancing, drinking, and revelry; any occasion of wild and drunken revelry.
Example
The novel describes the party as a bacchanalia of excess and joy.
小说将这个派对描述为一个过度和欢乐的巴卡纳利亚。
C2 noun /ˈbeɪleɪ/

Bele

贝雷鱼
Meaning
a type of freshwater fish found in South Asian rivers, known for its distinctive appearance
Example
The bele fish is commonly caught in the rivers of Bangladesh.
贝雷鱼通常在孟加拉国的河流中被捕获。
C1 adjective /bɪˈriːvd/

Bereaved

丧亲
Meaning
having lost a loved one through death
Example
The bereaved family received many condolences.
丧亲的家庭收到了很多慰问。
A1 noun /ˈbeɪbi/

baby

婴儿
Meaning
a very young child, especially one newly or recently born
Example
The baby is sleeping peacefully in the crib.
婴儿正在婴儿床上安静地睡觉。
A2 noun, verb /bræntʃ/

branch

分支
Meaning
A part of a tree that grows out from the trunk; a division of an organization or subject.
Example
The company opened a new branch in Dhaka.
公司在达卡开设了一个新分支。
C2 noun /ˌbɒmbərˈdɪər/

bombardier

炸弹员
Meaning
a member of a bomber crew responsible for releasing bombs
Example
The bombardier released the bombs with precision.
炸弹员精确地投下了炸弹。
B1 verb /ˈberi/

bury

埋葬
Meaning
to put in the ground; to hide; to cover completely
Example
The dog buries its bone in the yard.
狗把它的骨头埋在院子里。
B2 noun /ˈbaɪoʊ ˌdeɪtə/

Bio-data

简历
Meaning
biographical data; a resume or curriculum vitae containing personal and professional information
Example
Please submit your bio-data along with the job application.
请将您的简历与求职申请一起提交。
B1 noun /ˈbɪldər/

builder

建筑商
Meaning
a person or company that constructs buildings or other structures
Example
The builder checked the site before starting the construction.
建筑商在开始建造之前检查了现场。
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。
B1 noun /bɑːn/

barn

谷仓
Meaning
a large building used for storing grain or housing farm animals
Example
The farmer keeps his cows in the barn.
农民把他的牛放在谷仓里。
B2 noun /ˈboʊld.nəs/

Boldness

大胆; 勇气
Meaning
willingness to take risks; confidence and courage in behavior
Example
Her boldness in confronting the problem impressed everyone.
她在面对问题时的大胆让所有人都印象深刻。
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。
C1 noun /ˈbɛd.rɒk/

bedrock

基础
Meaning
the solid rock layer beneath the soil; the fundamental basis of something
Example
Trust is the bedrock of a healthy relationship.
信任是健康关系的基础。
B2 noun ˈbreɪk.θruː

breakthrough

突破
Meaning
A sudden, dramatic, and important discovery or development.
Example
The breakthrough opens doors for new technology.
这个突破为新技术打开了大门。
C2 verb /baɪd/

bide

等待
Meaning
to wait patiently for the right time or opportunity
Example
He decided to bide his time before making a move.
他决定在行动之前等待合适的时机。
C2 noun /blɑːtʃ/

blotch

污点
Meaning
a large, irregular spot or stain, often on skin or fabric
Example
His shirt had a red blotch from the spilled juice.
他的衬衫上有一个红色的污点,是由洒出的果汁造成的。
A1 noun /bɔɪ/

boy

男孩
Meaning
a male child or young male person
Example
The boy ran across the playground.
那个男孩跑过了操场。
C1 adjective /ˈbɔɪənt/ or /ˈbuːjənt/

buoyant

漂浮的,愉快的
Meaning
Able to float easily; cheerful and optimistic.
Example
She remained buoyant despite the difficulties.
她在困难面前依然保持乐观。
B2 verb /blʌf/

bluff

Meaning
to deceive someone by pretending to have strength, knowledge, or resources that one does not actually possess
Example
He tried to bluff his way into the exclusive club.
C1 noun /bɑːrˈbeəriən/

Barbarian

野蛮人; 未开化者;
Meaning
a person from an uncivilized group; someone who is cruel or brutal
Example
The ancient Romans considered anyone outside their empire to be barbarians.
古罗马人认为所有在他们帝国之外的人都是野蛮人。
C2 noun /ˈbʌskɪn/

buskin

厚底靴
Meaning
A type of thick-soled boot that reaches halfway to the knee; also associated with tragic drama in ancient times.
Example
The actor wore a buskin as part of his classical costume.
那位演员穿着巴斯金鞋子作为他经典服装的一部分。
B1 noun /beɪkt miːt/

Baked meat

烤肉
Meaning
meat that has been cooked in an oven using dry heat
Example
The baked meat was tender and flavorful.
烤肉嫩滑且味道鲜美。
A1 adverb /bɪˈhaɪnd/

Behind

后面
Meaning
at the back of; following; lagging
Example
The car behind us was honking.
我们后面的车在按喇叭。
C1 adjective, noun /ˈbʊrʒ.wɑː/

bourgeois

布尔乔亚
Meaning
Relating to the middle class, often with materialistic values or conventional attitudes.
Example
The novel criticizes the bourgeois lifestyle of the city dwellers.
这本小说批评了城市居民的布尔乔亚生活方式。
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.
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。
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。
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。
B1 noun /baɪˈɒlədʒi/

biology

生物学
Meaning
The scientific study of living organisms.
Example
Biology explains how plants and animals function.
生物学解释了植物和动物是如何运作的。
A1 noun /ˈbɒdi/

body

身体
Meaning
the physical structure of a person or animal
Example
Exercise helps keep the body healthy.
锻炼有助于保持身体健康。
C1 verb /bɔːl/

bawl

大声哭泣
Meaning
to shout or cry loudly
Example
The baby bawled all night, keeping everyone awake.
宝宝整晚哭个不停,吵醒了所有人。
C1 adjective /bɪˈmjuːzd/

bemused

困惑的,迷茫的
Meaning
confused, puzzled, or lost in thought
Example
She looked bemused when he asked the strange question.
当他问了一个奇怪的问题时,她看起来很困惑。
C1 verb, noun /ˈbrɪsəl/

bristle

刚毛; 愤怒反应
Meaning
to react angrily or defensively; a short stiff hair or fiber
Example
The cat bristled when it saw the dog.
猫看到狗时毛发竖起来。
B1 noun /ˈbaɪər/

buyer

买家
Meaning
a person who makes a purchase
Example
The buyer inspected the car before making payment.
买家在付款之前检查了这辆车。
B2 noun /ˈbæŋkrʌpt/

Bankrupt

破产
Meaning
a person unable to pay debts; having no money; completely lacking in something
Example
The company went bankrupt after years of poor financial management.
公司在多年糟糕的财务管理后破产了。
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。
B2 noun/verb /bʌst/

bust

Meaning
As a noun: A sculpture of a person's head, shoulders, and chest; As a verb: To break, smash, or arrest.
Example
The police busted the gang last night.
C2 adjective /baɪˈɛniəl/

biennial

两年一次的
Meaning
happening every two years
Example
The biennial festival attracts thousands of visitors.
这个两年一次的节日吸引了成千上万的游客。
B2 adjective /ˈbleɪzɪŋ/

Blazing

燃烧的; 炽热的
Meaning
burning fiercely; extremely hot; very bright
Example
The blazing sun made the day extremely hot.
炽热的太阳使得这一天异常炎热。
C1 noun /baʊt/

Bout

比赛; 回合; 时期;
Meaning
a short period of intense activity of a specified kind; a wrestling or boxing match
Example
After a bout of illness, she finally recovered and returned to work.
经过一段病痛后,她终于恢复并重返工作。