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B1 noun /ˈbɔr.dər/

Border

边界
Meaning
a line separating two political or geographical areas, especially countries
Example
They crossed the border between France and Spain by train.
他们乘火车穿越了法国和西班牙之间的边界。
C1 noun /ˈbɪɡ.ət/

bigot

偏执者
Meaning
A person who is intolerant toward those holding different opinions or beliefs.
Example
He was called a bigot for refusing to listen to others' views.
因为拒绝听取他人的观点,他被称为偏执者。
B1 phrasal verb /bloʊ aʊt/

blow out

吹灭
Meaning
to extinguish by blowing; to fail suddenly or burst; to expand or exceed limits dramatically
Example
She blew out the candles on her birthday cake.
她吹灭了生日蛋糕上的蜡烛。
B2 noun, verb /blæst/

blast

爆炸, 强烈撞击
Meaning
a strong gust of wind, an explosion, or a loud sound; to destroy or shatter by explosion
Example
The explosion sent a powerful blast through the building.
爆炸通过大楼发送了一股强劲的爆风。
C1 noun, verb /ˈbʌtrəs/

buttress

扶壁,支撑
Meaning
a structure built against a wall for support; to support or strengthen
Example
The cathedral walls were buttressed to prevent collapse.
大教堂的墙壁被支撑以防止倒塌。
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。
B1 verb/noun /bɔːr/

bore

使……感到无聊
Meaning
Verb: To make someone feel uninterested or tired; Noun: A dull or tiresome person.
Example
The lecture began to bore the students.
讲座开始让学生感到无聊。
B1 adverb /ˈbreɪv.li/

Bravely

勇敢地
Meaning
in a way that shows courage and determination
Example
The firefighter bravely entered the burning building.
消防员勇敢地进入燃烧的建筑物。
C2 noun /ˈbɒnəmi/

bonhomie

友善
Meaning
Cheerful friendliness and geniality.
Example
The meeting was filled with laughter and bonhomie.
会议充满了笑声和友善。
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。
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 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。
B2 verb /bɪˈtreɪ/

betray

背叛
Meaning
to be disloyal to; to reveal secrets
Example
He felt betrayed by his closest friend.
他感到被他最亲密的朋友背叛。
C1 adjective /ˌbaɪˈlæt.ər.əl/

bilateral

双边
Meaning
An agreement or relationship between two parties that is mutual, two-sided, or reciprocal.
Example
The two countries signed a bilateral trade agreement.
这两个国家签署了一项双边贸易协议。
B1 noun /braɪd/

Bride

新娘
Meaning
a woman on her wedding day or just before and after the event
Example
The beautiful bride walked down the aisle in her white wedding dress.
美丽的新娘穿着她的白色婚纱走过过道。
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。
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。
B2 noun /ˈbækdrɒp/

backdrop

背景
Meaning
a painted cloth or other structure used behind a stage
Example
The backdrop for the play was a beautiful mountain scene.
戏剧的背景是一幅美丽的山景。
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。
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。
B1 noun /biːst/

Beast

野兽
Meaning
a large or dangerous animal; a cruel or unpleasant person
Example
The lion is a fierce beast of the jungle.
狮子是丛林中凶猛的野兽。
C2 verb /bɪˈθɪŋk/

bethink

回想
Meaning
to cause oneself to consider or remember something
Example
He bethought himself of the promise he had made.
他想起了他曾做出的承诺。
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 determiner/pronoun /boʊθ/

both

两个
Meaning
referring to two people or things together
Example
Both of the children were excited about the trip.
这两个孩子对旅行感到兴奋。
B2 noun /brɑːnz/

bronze

Meaning
a metal made by combining copper and tin, often used for statues and medals
Example
The statue was made of solid bronze.
这座雕像是由坚固的铜制成的。
B1 noun /ˈbraɪd.ɡrʊm/

Bridegroom

新郎
Meaning
a man on his wedding day or just before and after the event
Example
The nervous bridegroom waited at the altar for his bride to arrive.
紧张的新郎站在祭坛前等着他的新娘到来。
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。
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。
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。
A2 adverb /ˈbædli/

badly

糟糕
Meaning
in a way that is not good; poorly or severely
Example
He performed badly in the exam.
他在考试中表现得很差。
B1 adjective /bɔɪld/

Boiled

煮熟的
Meaning
cooked in boiling water
Example
She served boiled eggs for breakfast.
她早餐时提供了煮鸡蛋。
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 /bɑːrb/

barb

刺, 尖锐的评论
Meaning
a sharp projection such as on a fishhook; a cutting remark
Example
The fishhook has a small barb to keep the fish from escaping.
鱼钩上有一个小刺,以防止鱼逃脱。
B2 noun /ˈblɒkˌtʃeɪn/

blockchain

区块链
Meaning
A system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system
Example
Blockchain technology ensures transparency in financial transactions.
区块链技术确保金融交易的透明度。
C1 verb /ˈbrændɪʃ/

brandish

挥舞
Meaning
to wave or flourish something, especially a weapon, in a threatening or showy way
Example
He brandished a sword to scare off the intruders.
他挥舞着剑把入侵者吓走了。
A1 noun /ˈbɒt.əl/

Bottle

瓶子
Meaning
a container with a narrow neck, typically made of glass or plastic, used for storing liquids
Example
She drank water from a plastic bottle.
她从塑料瓶里喝水。
C2 adjective /ˈbʊərɪʃ/

boorish

粗鲁
Meaning
Rude, insensitive, and lacking manners or refinement.
Example
His boorish behavior ruined the dinner party.
他的粗鲁行为毁了晚宴。
B2 noun /ˈbæk.boʊn/

Backbone

脊柱
Meaning
the series of vertebrae extending from the skull to the pelvis; spine
Example
He injured his backbone in the accident.
他在事故中伤了他的脊柱。
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。
B2 noun /ˈbrɔːdˌkæstər/

broadcaster

广播员
Meaning
a person or organization that transmits a broadcast program.
Example
The broadcaster aired the match live to millions of viewers.
广播员将比赛实时转播给数百万观众。
C2 adjective /ˈbʌksəm/

buxom

丰满且迷人的女性
Meaning
Plump, with a full figure and often large-breasted, especially used to describe women.
Example
The actress was described as a cheerful and buxom woman.
这位女演员被描述为一个快乐且丰满的女性。
C1 noun, verb /bʌldʒ/

bulge

Meaning
A swelling or protruding part; to swell outward or protrude.
Example
The bag began to bulge with too many books inside.
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 adjective /bɪˈsɒtɪd/

besotted

沉迷的,痴迷的
Meaning
strongly infatuated or obsessed with someone or something
Example
He was completely besotted with her charm.
他完全沉迷于她的魅力。
C1 noun /ˈbʌrə, ˈbʊrə/

borough

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。
C1 adjective /ˈbrɪslɪŋ/

bristling

竖毛的; 充满能量
Meaning
full of energy, anger, or excitement; showing bristles standing up
Example
He entered the room bristling with confidence.
他带着自信走进了房间。
B1 verb /breɪk/

brake

Meaning
to slow down or stop a vehicle by applying a brake
Example
He braked suddenly to avoid hitting the dog.
C2 verb /bɪˈdaɪzən/

bedizen

华丽装饰
Meaning
to dress up or decorate in a showy or tasteless way
Example
She was bedizened with cheap jewelry.
她用便宜的珠宝装饰自己。
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 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。
B2 noun/verb /ˌbærɪˈkeɪd/

barricade

障碍物
Meaning
a barrier erected to block or defend against movement; to block a passage with obstacles
Example
Protesters built a barricade across the street.
抗议者在街道上建造了一个障碍物。
C2 noun /ˈbʊlwərk/

bulwark

防线
Meaning
A strong wall or defensive structure; something that provides protection or support.
Example
The fortress walls served as a bulwark against enemy attacks.
堡垒的墙壁作为抵御敌人攻击的防线。
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。
B1 noun /blæk ˈber.i/

Black berry

黑莓
Meaning
a small dark purple or black fruit that grows on bushes
Example
We picked fresh blackberries from the garden for our pie.
我们从花园里摘取了新鲜的黑莓做我们的派。
B2 noun /ˈboʊlər/

bowler

投球员
Meaning
a person who delivers the ball in cricket; also a type of hard felt hat with a rounded crown
Example
The bowler took three wickets in the first over.
投球员在第一轮中拿下了三个wicket。
B2 noun /ˈbjʊəroʊ/

bureau

办事处/机构
Meaning
An office or agency that provides services or manages specific duties.
Example
The travel bureau helped them plan their vacation.
旅游局帮助他们规划假期。
A2 adjective /braɪt/

Bright

明亮
Meaning
giving out or reflecting much light; vivid in color
Example
The artist used bright colors in her painting.
艺术家在她的画作中使用了明亮的颜色。
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.
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。
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。
B2 noun, verb /bluːm/

bloom

开花;繁荣
Meaning
to produce flowers; to develop or flourish; a flower or the state of flowering
Example
The roses bloom beautifully every spring.
玫瑰每年春天都会美丽地开花。
B2 noun, verb /bʌt/

butt

Meaning
to hit or push with the head or horns; the end part of something, especially a cigarette
Example
The goat butted the fence with its horns.
C2 verb /bɪˈhuːvz/

behooves

有必要
Meaning
third person singular form of 'behoove'; means it is proper or necessary
Example
It behooves every citizen to follow the law.
每个公民都应该遵守法律。
A2 noun /ˈbætəri/

battery

电池
Meaning
A device that stores and provides electrical energy; also refers to a group of similar things or repeated blows.
Example
The phone battery ran out after a long day.
手机电池在长时间使用后耗尽了。
C1 verb, noun /ˈbreɪnˌwɒʃ/

brainwash

洗脑
Meaning
to manipulate someone into adopting certain beliefs by repeated pressure or propaganda; the act or process of such manipulation
Example
The group tried to brainwash new members with constant propaganda.
这个组织试图给新成员洗脑。
B1 noun /ˈbluː.ber.i/

Blueberry

蓝莓
Meaning
a small round blue fruit that grows on bushes
Example
She picked fresh blueberries for the pie.
她为派对摘了新鲜的蓝莓。
A2 noun /brɪdʒ/

Bridge

Meaning
a structure carrying a road, path, railway, etc. across a river, road, or other obstacle
Example
The old stone bridge has connected the two towns for over a century.
这座古老的石桥已经连接这两个城市超过一个世纪。
C1 adjective ˈbɜːdʒənɪŋ

burgeoning

蓬勃发展
Meaning
Beginning to grow or increase rapidly; flourishing.
Example
The burgeoning tech industry has attracted many investors.
这个蓬勃发展的技术行业吸引了许多投资者。
C1 verb /bɪˈriːv/

bereave

失去亲人
Meaning
to deprive someone of a loved one through death
Example
She was bereaved of her husband last year.
她去年失去了她的丈夫。
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。
A2 verb /bɪˈheɪv/

behave

表现
Meaning
to act in a particular way; to conduct oneself
Example
Children should behave well in school.
孩子们应该在学校里表现得很好。
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。
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 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 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 noun /bəˈtɒn/

baton

Meaning
A thin stick carried by a conductor to direct an orchestra, or used as a symbol of authority.
Example
The conductor raised his baton to begin the symphony.
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。
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。
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。
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。
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。
B1 noun /bæŋ/

Bang

突然的响声; 强烈的撞击或打击
Meaning
a sudden loud noise; a hard blow or hit
Example
The door closed with a loud bang that woke everyone up.
门关上时发出一声巨响,吵醒了所有人。
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。
C1 adjective /ˈblaɪtɪd/

blighted

荒废的
Meaning
Spoiled, damaged, or destroyed.
Example
The blighted neighborhood was abandoned by most residents.
荒废的社区被大多数居民遗弃。
A2 noun ˈbræntʃɪz

Branches

树枝
Meaning
A part of a tree that grows out from the trunk or from a bough.
Example
Family tree branches show the relationship between family members.
家族树的枝条展示了家人之间的关系。
A2 noun /ˈbʌk.ɪt/

Bucket

Meaning
a roughly cylindrical open container with a handle, used to hold and carry liquids
Example
The farmer filled the bucket with fresh water from the well.
农民用井里的清水填满了桶。
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。
B2 noun breɪn ˈtreɪ.nɪŋ

brain-training

大脑训练
Meaning
Mental exercises designed to improve cognitive functions, memory retention, and overall brain performance.
Example
Regular brain-training can improve memory retention.
定期的大脑训练可以提高记忆力。
C1 noun /bəˈbuːn/

Baboon

狒狒
Meaning
a large African and Arabian primate with a dog-like snout and colorful buttocks
Example
The baboon troop gathered around the watering hole in the savanna.
狒狒群聚集在大草原的水坑旁。
C1 noun /ˈbed sted/

Bed stead

床架
Meaning
the framework of a bed; a bed frame without bedding
Example
The wooden bed stead was very sturdy.
木质床架非常坚固。
C2 verb /bɪˈdɛk/

bedeck

装饰
Meaning
to decorate or adorn something in a showy way
Example
The hall was bedecked with flowers for the wedding.
大厅为婚礼装饰了花卉。
A2 adverb /ˈbjuːtɪfəli/

beautifully

优美地
Meaning
in a beautiful or pleasing manner; excellently or skillfully
Example
She sang beautifully at the concert.
她在音乐会上唱得很优美。
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 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。
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。
C2 verb /bɪˈleɪt/

belate

耽搁
Meaning
to delay or make late
Example
Heavy traffic belated our arrival at the party.
交通繁忙导致我们到达聚会时迟到。
B2 noun /ˈbʌn.dəl/

Bundle

包裹; 捆
Meaning
a collection of things or quantity of material tied or wrapped up together
Example
The mailman delivered a bundle of letters to our house.
邮递员把一包信送到了我们的家。
C1 verb /bɪˈɡrʌdʒ/

begrudge

嫉妒某人拥有某物 / 勉强给予
Meaning
to resent someone for having something; to give reluctantly
Example
She did not begrudge him his success.
她没有对他的成功感到嫉妒。
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 /ˈblaɪðsəm/

blithesome

愉快
Meaning
cheerful, carefree, and full of joy
Example
She entered the room with a blithesome smile that lifted everyone's spirits.
她带着愉快的笑容走进房间,大家的心情都变好了。
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 verb /bɪˈleɪ/

belay

固定绳索
Meaning
to secure a rope by winding it around an object; to stop or cancel an order (nautical/military use)
Example
The climber asked his partner to belay the rope tightly.
攀岩者要求他的搭档紧紧地固定绳索。
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。
C2 noun /ˈbɛlfri/

belfry

钟楼
Meaning
A bell tower, especially one attached to a church or building.
Example
The church belfry housed a large bronze bell.
教堂的钟楼里有一个大铜钟。
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。
A2 verb; adjective /broʊk/

broke

打破了;没钱
Meaning
past tense of break; having no money or being financially poor
Example
I broke my phone last night and now I’m completely broke.
我昨晚把手机弄坏了,现在一点钱也没有。
A1 noun /bɜːrd/

bird

Meaning
a warm-blooded animal with feathers and wings that usually lays eggs and can often fly
Example
A bird was singing on the tree branch.
一只鸟在树枝上唱歌。
C1 noun /bəˈnæn.zə/

Bonanza

一种突然增加财富、好运或利润的情况或事件
Meaning
a situation or event that creates a sudden increase in wealth, good fortune, or profits
Example
The oil discovery was a bonanza for the small country.
石油的发现对这个小国来说是一个博南萨。
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 /ˈbæs.ti.ən/

bastion

堡垒, 防御工事
Meaning
a stronghold or fortification; a place or institution strongly defending particular principles
Example
The castle stood as a bastion against enemy attacks.
这座城堡作为抵御敌人攻击的堡垒而屹立。
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。
C2 verb /bɪˈɡaɪl/

beguile

迷住 / 通过欺骗来吸引
Meaning
to charm or enchant someone, often in a deceptive way
Example
She beguiled the audience with her storytelling.
她通过讲故事迷住了观众。
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 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 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。
C2 verb /bɪˈfʌdəl/

befuddle

使困惑
Meaning
to confuse someone completely; to make someone unable to think clearly
Example
The complex instructions befuddled the students.
复杂的指示使学生感到困惑。
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。
A2 noun breɪn

brain

大脑
Meaning
The organ inside the head that controls thought, memory, feelings, and activity
Example
The brain can only focus on one thing at a time.
大脑一次只能专注于一件事。
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。
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 verb /broʊtʃ/

broach

提出
Meaning
to bring up a subject for discussion
Example
She decided to broach the topic of salary with her manager.
她决定与经理讨论工资问题。