biodegradable
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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。
B2 noun /buˈkeɪ/

Bouquet

花束
Meaning
an attractively arranged bunch of flowers, especially one presented as a gift or carried at a ceremony
Example
The bride carried a beautiful bouquet of white roses down the aisle.
新娘携带着美丽的白玫瑰花束走过过道。
C2 noun /bɑːrd/

bard

诗人
Meaning
a poet, traditionally one reciting epics and associated with oral traditions
Example
Shakespeare is often called the Bard of Avon.
莎士比亚常被称为艾文的诗人。
A1 noun /bɪˈɡɪnɪŋ/

beginning

开始
Meaning
The start or first part of something.
Example
The beginning of the story was very interesting.
故事的开始非常有趣。
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。
A2 noun /ˈbjuː.ti/

Beauty

美丽
Meaning
the quality of being pleasing to look at; attractiveness
Example
The beauty of the sunset took my breath away.
夕阳的美丽让我屏住了呼吸。
B1 noun /ˈbæŋkər/

banker

银行家
Meaning
a person who works in or manages a bank
Example
The banker approved the loan after reviewing the documents.
银行家在审查文件后批准了贷款。
C2 verb /beɪt/

bate

减轻，抑制
Meaning
to lessen or restrain; to diminish the force or intensity of something
Example
He spoke with bated breath as he waited for the result.
他屏住呼吸等待结果时说道。
C1 noun /ˈbreɪkər/

breaker

断路器（打破某物的人或物体；在岸边破碎成泡沫的大海浪；中断电路的设备）
Meaning
A person or thing that breaks something; a large sea wave that breaks into foam near the shore; a device that interrupts an electric circuit.
Example
The breaker tripped during the storm, cutting off electricity.
暴风雨期间，断路器跳闸，切断了电力。
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。
C2 noun /ˈbriːzˌweɪ/

breezeway

有顶走道
Meaning
A roofed outdoor passage, often connecting two buildings.
Example
The breezeway connected the house to the garage.
有顶走道将房子与车库连接在一起。
C2 noun /ˈblʌfər/

bluffer

虚张声势的人
Meaning
a person who pretends to be more confident, skilled, or knowledgeable than they really are; someone who deceives others by bluffing
Example
Everyone eventually realized that he was just a bluffer with no real experience.
大家最终意识到他只是个虚张声势的人。
B2 adjective /beər/

Bare

裸; 未覆盖; 空; 最少
Meaning
naked; uncovered; empty; minimal
Example
The bare walls of the room needed some decoration.
房间的光秃秃的墙壁需要一些装饰。
B2 noun /ˈbɪtərnəs/

Bitterness

苦涩
Meaning
anger and disappointment at being treated unfairly; resentment; a sharp, unpleasant taste
Example
She spoke with bitterness about her former employer.
她谈到了对以前雇主的愤怒。
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 adjective /ˈbloʊtɪd/

bloated

膨胀的
Meaning
swollen or puffed up, often unpleasantly
Example
After the big meal, he felt bloated and uncomfortable.
吃完大餐后，他感到肚子膨胀不适。
C2 adjective /bɒmˈbæstɪk/

bombastic

浮夸
Meaning
using pompous or inflated language with little meaning
Example
The professor’s bombastic lecture impressed no one.
教授那场浮夸的讲座没有给任何人留下深刻印象。
C2 adjective /ˈbɪliəs/

bilious

胆汁的
Meaning
Relating to bile or an ill-tempered, irritable disposition.
Example
He became bilious after hearing the unfair criticism.
他在听到不公正的批评后变得暴躁。
C1 adjective /ˈbrɪtl/

brittle

脆弱
Meaning
easily broken or cracked; hard but liable to break
Example
The glass was so brittle that it cracked easily.
玻璃太脆弱，容易破裂。
B2 verb /bleɪz/

blaze

熊熊火焰
Meaning
to burn brightly or powerfully
Example
The fire blazed for hours before it was brought under control.
火焰持续燃烧了几个小时，直到它被控制住。
A2 noun/verb /ˈbætəl/

battle

战斗
Meaning
A fight between armed forces or a struggle to achieve or resist something.
Example
The soldiers prepared for the final battle.
士兵们为最后的战斗做好了准备。
C2 noun /biˈætɪtjuːd/

beatitude

至高的祝福或幸福，常用于指耶稣在山上宝训中的教义
Meaning
supreme blessedness or happiness, often used in reference to the sayings of Jesus in the Sermon on the Mount
Example
She felt a state of beatitude after receiving the good news.
收到好消息后，她感到一种祝福的状态。
A1 verb /baɪ/

buy

买
Meaning
to get something by paying money for it; to purchase
Example
I want to buy a new car this year.
我今年想买一辆新车。
B2 noun /ˈbɑː.li/

Barley

大麦
Meaning
a cereal grain used for food, brewing beer, and animal feed
Example
The farmer harvested barley from his fields in autumn.
农民在秋天从他的田地里收获了大麦。
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。
C1 noun /braɪn/

brine

盐水
Meaning
Water saturated with salt, often used for preserving food.
Example
The olives were stored in brine to keep them fresh.
橄榄被保存在盐水中以保持新鲜。
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 adjective /ˈbaɪ.fərˌkeɪ.tɪd/

bifurcated

分成两部分
Meaning
Divided into two branches or parts.
Example
The river became bifurcated as it flowed around the island.
河流分成两部分，当它绕过岛屿时。
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/verb /ˈbrækɪt/

bracket

金属支架
Meaning
A support attached to a wall for holding something; also, to group things together.
Example
The shelf was held up by a strong metal bracket.
架子被一个强大的金属支架支撑。
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。
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。
C2 adjective /bɪˈnaɪtɪd/

benighted

黑暗的，无知的
Meaning
In a state of intellectual or moral ignorance; overtaken by darkness.
Example
The explorers were lost in the benighted forest without any guide.
探险者在没有向导的情况下迷失在黑暗的森林中。
A1 verb /biː/

be

是
Meaning
To exist, to occur, or to have a particular quality.
Example
She wants to be a doctor.
她想成为一名医生。
B2 noun ˈbentʃ.mɑːk

benchmark

基准
Meaning
A standard or point of reference against which things may be compared or assessed.
Example
Sabah Al Ahmad Sea City sets a benchmark in sustainability.
萨巴赫·阿尔·艾哈迈德海港城市在可持续性方面设立了基准。
A2 noun /bɔːrd/

board

Meaning
a flat, thin, rectangular piece of material such as wood; also a group of people managing an organization
Example
The board decided to increase the budget.
C2 verb /ˈblʌstər/

bluster

大声吹嘘
Meaning
to speak loudly in an aggressive or threatening way, often without real power
Example
The manager blustered about firing people but did nothing.
经理大声吹嘘解雇人，但什么也没做。
B2 noun /braʊ/

brow

额头
Meaning
the part of the face above the eyes; forehead
Example
She wiped the sweat from her brow.
她擦去了额头上的汗水。
B1 noun ˈbæriə(r)

barrier

障碍
Meaning
A fence or other obstacle that prevents movement or access.
Example
The barrier prevented entry.
障碍阻止了进入。
A1 noun /ˈbaɪ.sɪ.kəl/

Bicycle

自行车
Meaning
A vehicle with two wheels that you pedal to make it move
Example
She rides her bicycle to work every day.
她每天骑自行车去上班。
B2 adverb /bɪˈfɔːr.hænd/

Beforehand

事先; 提前; 以前
Meaning
in advance; ahead of time; earlier
Example
We prepared everything beforehand.
我们事先准备好了所有的东西。
C1 noun /ˈbʊzəm/

bosom

胸部
Meaning
the human chest, especially a woman’s breast; also used metaphorically to refer to closeness or intimacy
Example
She kept the secret close to her bosom.
她把秘密藏在胸口。
B1 noun ˈbaʊndəri

boundary

边界
Meaning
A line that marks the limits of an area; a dividing line.
Example
The river marks the boundary.
河流标记边界。
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。
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。
A2 noun /biːn/

Bean

豆
Meaning
an edible seed, typically kidney-shaped, growing in long pods on certain leguminous plants
Example
We planted green beans in our vegetable garden this spring.
我们在春天把绿豆种植在我们的蔬菜园里。
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 /ˈbeɪ.zəl siːdz/

Basil Seeds

罗勒种子
Meaning
small black seeds from the basil plant, often used in drinks and desserts
Example
I added basil seeds to my lemonade for a refreshing drink.
我在柠檬水中加入了罗勒种子，制作了一种清爽的饮品。
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。
B2 adverb /ˈbrɔːdli/

broadly

广泛地
Meaning
in a general or wide manner.
Example
The rules are broadly similar across all regions.
规则在所有地区大体相似。
B2 noun; verb /breɪs/

brace

支架；做好准备
Meaning
a device that supports or strengthens something; to prepare mentally or physically for something difficult
Example
She braced herself for the strong wind.
她为强风做好了准备。
C2 adjective /ˈbɪz.ən.taɪn/ or /ˈbaɪ.zənˌtiːn/

byzantine

复杂
Meaning
Extremely complicated and detailed; relating to the Byzantine Empire or its style.
Example
The new tax regulations are so byzantine that few understand them.
新的税收规定非常复杂，很少有人能理解。
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。
B2 adjective /ˈbɪtər/

Bitter

苦; 味道强烈; 表现出愤怒和失望
Meaning
having a sharp, pungent taste; feeling or showing anger and disappointment
Example
The medicine had a bitter taste.
药物有苦味。
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 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。
B1 noun /bend/

Bend

弯曲; 转弯
Meaning
a curved or angled part of something; a turning point in a road or river
Example
There is a sharp bend in the river ahead.
前方河流有一个急转弯。
C1 verb /bɪˈlɪtl/

belittle

贬低
Meaning
To make someone or something seem less important or less valuable.
Example
He often belittled his coworkers to feel superior.
他经常贬低同事以感到优越。
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。
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。
C2 noun /ˈbreɪziər/

Brazier

黄铜工人
Meaning
a worker in brass; a portable container for burning charcoal or coal
Example
The brazier crafted beautiful brass ornaments.
这个黄铜工人制作了美丽的黄铜饰品。
C2 noun /ˌbeɪˈliː/

bailee

受托人
Meaning
a person or party who temporarily receives possession of goods or property from another under a legal agreement
Example
The bailee must take reasonable care of the goods while they are in his possession.
受托人必须合理地保管财产。
C2 adjective /ˈbɔːlki/

balky

固执
Meaning
difficult, uncooperative, or stubborn
Example
The balky printer refused to work when needed most.
固执的打印机在最需要的时候拒绝工作。
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。
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 verb /bɛr/

bear

承受
Meaning
to carry; to endure; to give birth to; to support
Example
She cannot bear the pain anymore.
她再也承受不了这种痛苦了。
C1 adjective /bɪˈnaɪn/

benign

Meaning
Gentle, kind, or not harmful (especially of a disease or tumor).
Example
The doctor assured her that the tumor was benign.
C2 adjective /ˈbɔːdi/

bawdy

猥亵
Meaning
humorously indecent or obscene, often in a sexual way
Example
The comedian’s bawdy jokes made the audience laugh and blush.
喜剧演员的猥亵笑话让观众笑了并且脸红。
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。
A2 noun /boʊn/

Bone

骨头
Meaning
any of the hard parts inside a human or animal that make up its frame
Example
The doctor said the bone was completely healed after the fracture.
医生说，骨头在骨折后完全恢复了。
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。
B1 noun /ˈbreɪs.lət/

Bracelet

手链
Meaning
an ornamental band worn around the wrist
Example
She received a gold bracelet as a birthday gift.
她收到了一条金手链作为生日礼物。
C2 noun /bɪˈhiː.mɒθ/

behemoth

庞然大物
Meaning
Something enormous, especially a large and powerful organization.
Example
The company grew into a corporate behemoth.
公司发展成了一个企业庞然大物。
C2 noun /ˈbloʊˌhɑrd/

blowhard

自负的人
Meaning
a person who brags a lot or talks in a boastful way
Example
Everyone avoided the blowhard at the party because he wouldn't stop bragging.
在派对上，大家都避开了那个自负的人，因为他不停地吹嘘。
A2 noun; gerund /ˈbɒksɪŋ/

boxing

拳击
Meaning
the sport of fighting with fists using padded gloves; the act of putting something into a box
Example
He has been training hard for a professional boxing match.
他正在为一场职业拳击比赛刻苦训练。
B1 verb /blɛs/

bless

祝福
Meaning
to give divine favor; to ask for God's favor
Example
The priest blessed the congregation.
牧师祝福了会众。
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。
C2 noun /ˈbɔːl.səm ˈæp.əl/

Balsam apple

苦瓜
Meaning
a bitter gourd vegetable with a bumpy green skin, also known as bitter melon
Example
Balsam apple is cooked with spices to reduce its bitter taste.
苦瓜用香料烹饪，以减少其苦味。
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。
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 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 noun /ˈbuːt.stræp.ɪŋ/

bootstrapping

自筹资金
Meaning
Starting a business with personal resources or small investments without external funding or venture capital.
Example
Many entrepreneurs rely on bootstrapping to launch their businesses.
许多企业家依靠自筹资金启动他们的业务。
C2 adjective /ˈbrɪndl̩d/

brindled

斑驳
Meaning
Having a brownish or tawny color with streaks or spots of another color.
Example
The farmer owned a brindled cow with distinctive stripes.
农民拥有一头带有显著条纹的斑驳奶牛。
B2 adjective /blʌnt/

blunt

钝的，直率的
Meaning
not sharp; direct and straightforward in speech
Example
Her blunt remarks offended some people.
她直率的评论冒犯了某些人。
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 /ˈbeɪs.ləs/

Baseless

没有根据的; 无根据的; 不合理的
Meaning
without foundation; groundless; unfounded
Example
The accusations against him were completely baseless.
对他的指控完全没有根据。
C1 noun/verb /brʊk/

brook

小溪 / 容忍
Meaning
As a noun: a small natural stream; As a verb: to tolerate or endure something
Example
The village was built near a clear brook.
这个村庄建在一条清澈的小溪旁。
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。
C1 verb /blɜːrt/

blurt

突然说出
Meaning
to say something suddenly without thinking
Example
He blurts out the secret accidentally.
他不小心说出了秘密。
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。
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。
C1 noun /bruːˈtæləti/

brutality

残暴
Meaning
extreme cruelty or violence; savage or inhumane treatment
Example
The brutality of the attack shocked the entire community.
这次攻击的残暴震惊了整个社区。
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。
A1 noun/verb /bæŋk/

bank

银行
Meaning
an institution where money is kept and managed; or to tilt in movement (like an airplane or riverbank)
Example
She deposited the money in the bank.
她把钱存入了银行。
B2 noun /buːˈtiːk/

boutique

时尚店
Meaning
a small shop that sells fashionable clothes or accessories
Example
She bought a beautiful dress from a boutique downtown.
她在市中心的时尚店里买了一件漂亮的裙子。
C1 noun /bəˈtæljən/

battalion

营
Meaning
A large body of soldiers ready for battle, typically consisting of several companies.
Example
The battalion was deployed to the front line.
这个营被部署到前线。
B1 noun, verb /bʌz/

buzz

嗡嗡声
Meaning
to make a low continuous humming sound; a feeling of excitement or interest
Example
I could hear the phone buzz during the meeting.
开会时我听到了手机的嗡嗡声。
C2 adjective /ˈbɛərˌfeɪst/

barefaced

厚颜无耻
Meaning
shameless and undisguised; openly bold or unashamed
Example
He told a barefaced lie in front of everyone.
他在大家面前说了个厚颜无耻的谎言。
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。
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。
B2 noun /bækˈtɪəriəm/

bacterium

细菌
Meaning
A single microscopic organism belonging to the group of bacteria.
Example
The doctor explained that a single bacterium can multiply rapidly under the right conditions.
医生解释说，一个单一的细菌在适当的条件下可以迅速繁殖。
A2 verb /baɪt/

bite

咬
Meaning
to cut with teeth; to have a sharp effect
Example
The dog might bite if it feels threatened.
那只狗可能会咬，如果它感到受到威胁。
B2 verb /ˈbɔɪkɑt/

boycott

抵制
Meaning
to refuse to buy, use, or participate in something as a protest
Example
They decided to boycott the company's products.
他们决定抵制公司的产品。
C2 noun /ˈbeɪlɔːr/

bailor

寄托人
Meaning
a person who temporarily transfers possession of goods or property to another under a bailment agreement
Example
The bailor entrusted the valuable artwork to the museum for safekeeping.
寄托人把艺术品交给了博物馆。
C2 noun /ˈbʌt.ər fɪʃ/

Butter-fish

黄油鱼
Meaning
a small, smooth-skinned marine fish
Example
The butter-fish is popular in Bengali cuisine.
黄油鱼在孟加拉菜中很受欢迎。
B2 noun /ˈbænər/

banner

Meaning
a large printed sign used for advertisements or announcements
Example
The company displayed a banner to advertise their new product.
B1 noun /ˈblen.dər/

Blender

搅拌机
Meaning
an electric kitchen appliance used to mix, purée, or emulsify food and liquids
Example
She used the blender to make a delicious smoothie.
她用搅拌机做了一个美味的冰沙。
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.
A2 noun /ˈbenɪfɪt/

Benefit

好处; 利益; 益处
Meaning
an advantage or profit gained from something; a helpful or good effect
Example
Exercise has many health benefits for your body.
运动对你的身体有许多健康益处。
C2 noun ˌbaɪ.oʊ.əˈveɪ.lə.bɪl.ə.ti

bioavailability

身体吸收能力
Meaning
The degree to which a substance can be absorbed and used by the body.
Example
Turmeric's bioavailability increases when consumed with black pepper.
姜黄的生物可利用性在与黑胡椒一起食用时增加。
A2 adverb /ˈbæk.wərdz/

Backwards

向后; 逆序
Meaning
in the direction that is behind; in reverse order
Example
He counted backwards from ten to one.
他从十数到一，倒着数。
C2 noun /ˈbiːtənd raɪs/

Beatened rice

拍打米
Meaning
flattened rice; rice that has been parboiled, dried, and beaten into flat flakes
Example
Beaten rice is commonly eaten with milk and sugar for breakfast.
拍打米常与牛奶和糖一起食用作为早餐。
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 adjective /ˈbeɪnfəl/

baneful

有害的
Meaning
Causing harm, ruin, or destruction; deadly or poisonous.
Example
His baneful influence ruined the community.
他的有害影响摧毁了社区。
C2 noun /bəˈlɛəroʊ/

bolero

博莱罗（西班牙舞蹈或前面开口的短外套）
Meaning
A Spanish dance in slow triple time, or a short jacket open at the front.
Example
The dancers performed a passionate bolero at the festival.
舞者在节日中表演了热情的博莱罗。
B2 noun /ˈbrɔːd.bænd/

broadband

宽带
Meaning
a high-capacity transmission technique using a wide range of frequencies.
Example
Broadband internet has become a necessity in modern homes.
宽带互联网已成为现代家庭的必需品。
B1 noun /ˈbles.ɪŋ/

Blessing

祝福; 礼物;
Meaning
a beneficial thing for which one is grateful; divine favor
Example
Having good health is a blessing that we should cherish.
拥有良好的健康是我们应该珍惜的祝福。
C2 verb /ˈblʌdʒən/

bludgeon

用重物打击
Meaning
to hit someone with a heavy object; to force someone into doing something
Example
The guard was bludgeoned by the attacker in the alley.
警卫被小巷中的袭击者用重物打击。
C1 noun /ˈbæləd/

ballad

叙事歌曲
Meaning
a narrative song or poem, often sentimental or romantic
Example
The singer performed a moving ballad about lost love.
歌手演唱了一首感人的失恋歌曲。
C2 adjective /ˈbɒni/

Bonny

美丽的; 漂亮的; 快乐的
Meaning
cheerful; pretty; attractive
Example
The bonny child played happily in the garden.
这个漂亮的孩子在花园里快乐地玩耍。