brain-training
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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。
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。
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。
A2 preposition /bɪˈsaɪd/

beside

在...旁边
Meaning
next to or at the side of someone or something
Example
She sat beside her best friend during the ceremony.
她在仪式期间坐在她最好的朋友旁边。
C1 verb /ˈbʌŋɡəl/

bungle

搞砸
Meaning
To carry out a task clumsily or incompetently.
Example
He bungled the presentation and confused the audience.
他搞砸了演示并让观众感到困惑。
C2 verb /bɪˈdɔːb/

bedaub

涂抹
Meaning
to smear or cover with a sticky or dirty substance
Example
The children bedaubed the wall with paint.
孩子们用油漆涂抹了墙。
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, verb /buːz/

booze

酒
Meaning
alcoholic drink, especially strong liquor; to drink alcohol, often excessively
Example
They bought some booze for the party.
他们为派对买了酒。
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。
C1 noun /ˈbjuːɡəl/

Bugle

军号
Meaning
a brass musical instrument similar to a trumpet but without valves, used especially for military calls
Example
The soldier played the bugle to signal the start of the ceremony.
士兵吹响军号以示仪式开始
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。
A2 noun /boʊl/

Bowl

碗
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。
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。
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。
C2 adverb /bɪˈtaɪmz/

betimes

早早
Meaning
early; in good time
Example
She rose betimes to finish her work.
她早起以完成工作。
C2 noun /bəˈsuːn/

bassoon

一种大号木管乐器
Meaning
a large woodwind instrument with a deep sound
Example
The orchestra featured a beautiful bassoon solo.
乐团演奏了美妙的巴松独奏。
C1 noun /ˈblɛm.ɪʃ/

blemish

瑕疵
Meaning
A small mark or flaw that spoils the appearance of something.
Example
The mirror had a small blemish on the surface.
镜子表面有一个小瑕疵。
C2 adjective /ˈbreɪsɪŋ/

bracing

清新的
Meaning
Invigorating, refreshing, or providing strength and energy.
Example
The hikers enjoyed the bracing mountain air.
远足者享受着清新的山间空气。
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 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。
A1 noun /ˈbrek.fəst/

Breakfast

早餐
Meaning
the first meal of the day, usually eaten in the morning
Example
I had cereal and toast for breakfast this morning.
今天早上我吃了麦片和烤面包作为早餐。
C1 adjective /ˈbær.ən/

Barren

荒芜的; 不毛的; 无生气的; 不生产的
Meaning
sterile; unable to produce; desolate; unproductive
Example
The barren desert stretched for miles without any vegetation.
荒凉的沙漠延伸了几英里，没有任何植被。
A1 verb /bɪˈliːv/

believe

相信
Meaning
to think that something is true; to have faith in
Example
I believe in hard work and dedication.
我相信努力工作和奉献。
C1 noun /ˈbɑn.dɪdʒ/

Bondage

奴役; 囚禁
Meaning
the state of being a slave; the state of being under the control of a force or influence
Example
The people fought to escape from the bondage of oppression.
人们为了摆脱压迫的束缚而斗争。
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。
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。
C2 noun /baɪˈmɛstər/

bimester

两个月的时间段
Meaning
A period of two months.
Example
The academic program is divided into six bimesters.
学术项目分为六个学期。
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。
B2 adjective /ˌbaɪˈlɪŋɡwəl/

bilingual

双语的
Meaning
Able to speak two languages fluently.
Example
She grew up in a bilingual household speaking both English and Spanish.
她在一个双语家庭中长大，既说英语也说西班牙语。
C2 noun /ˈbʌt.ə.flaɪ piː/

Butterfly Pea

蝴蝶豆
Meaning
a blue flowering plant with butterfly-shaped flowers, used to make herbal tea
Example
Butterfly pea flowers turn tea into a beautiful blue color.
蝴蝶豆花将茶水染成美丽的蓝色。
B2 noun /ˈblʌn.dər/

blunder

一个愚蠢或疏忽的错误；判断中的严重错误。
Meaning
A stupid or careless mistake; a serious error in judgment.
Example
His blunder cost the company a fortune.
他的错误让公司损失了巨大的财富。
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 /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。
C2 adjective /baɪˈkæmərəl/

bicameral

两院制
Meaning
Having two branches or chambers, especially in a legislature.
Example
The United States has a bicameral legislature consisting of the Senate and the House of Representatives.
美国有一个两院制的立法机构，由参议院和众议院组成。
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。
C1 adjective /ˈbuːzi/

boozy

酒气的
Meaning
containing or involving a lot of alcohol; slightly drunk from alcohol
Example
The party became boozy as the night went on.
随着夜晚的进行，派对变得很有酒气。
C1 verb /ˈbædʒər/

badger

烦扰, 打扰
Meaning
To repeatedly ask or annoy someone with demands or questions.
Example
The reporter kept badgering the politician with questions.
记者不断用问题打扰政治人物。
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 adjective, noun /bɪˈtroʊðd/

betrothed

订婚的
Meaning
Engaged to be married; a person who is engaged.
Example
She introduced him as her betrothed.
她把他介绍为她的未婚夫。
C2 noun /ˈbroʊmiːn/

bromine

溴
Meaning
a dark red, dense, toxic liquid element used in making dyes, flame retardants, and medications
Example
Bromine is commonly used in water treatment chemicals.
溴通常用于水处理化学品中。
B2 noun /briz/

Breeze

微风
Meaning
a gentle wind; something that is achieved with ease
Example
The cool ocean breeze made the hot summer day more pleasant.
清凉的海风让炎热的夏日更加宜人。
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 adverb /ˈbəʊld.li/

Boldly

大胆地; 毫不畏惧
Meaning
in a confident and brave way; without fear
Example
She boldly stepped forward to face the challenge.
她勇敢地迈步向前，迎接挑战。
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。
A2 noun/verb /bəˈluːn/

balloon

气球
Meaning
A small bag made of thin rubber or similar material that can be inflated with air or gas; as a verb, to expand rapidly.
Example
The children played with a red balloon at the party.
孩子们在聚会上玩了一个红色的气球。
B2 noun /bɑnd/

Bond

纽带; 债券
Meaning
a close connection joining two or more people; a certificate of debt issued by a government or corporation
Example
The strong bond between the mother and child was evident.
母亲与孩子之间的强烈纽带是显而易见的。
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。
B2 noun /bɪtʃ/

Bitch

母狗;
Meaning
a female dog; an unpleasant or spiteful woman (offensive)
Example
The bitch gave birth to five puppies.
那只母狗生下了五只小狗。
C1 noun /ˈbænɪstər/

banister

扶手栏杆
Meaning
a railing supported by posts at the side of a staircase or balcony
Example
She held the banister tightly while going down the stairs.
她在下楼时紧紧抓住扶手栏杆。
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.
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 /bɪˈfɪt.ɪŋ/

Befitting

合适的; 适合的; 对于特定情况或人适当
Meaning
appropriate; suitable; proper for a particular situation or person
Example
He wore formal attire befitting the important occasion.
他穿了适合重要场合的正式服装。
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。
C2 verb /bɪˈtaɪd/

betide

发生
Meaning
to happen or occur, usually of something that befalls someone
Example
Woe betide anyone who breaks the rules.
打破规则的人会遭受后果。
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 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。
C2 noun /ˈbɛnɪfɪs/

benefice

教会职务
Meaning
a permanent church appointment for which property and income are provided
Example
The bishop appointed him to a wealthy benefice.
主教任命他为一个富有的教会职务。
C1 noun /blæk plʌm/

Black plum

黑李子
Meaning
a dark purple or black colored edible fruit with sweet and sour taste
Example
I picked some fresh black plums from the tree in our backyard.
我从我们后院的树上摘了几颗新鲜的黑李子。
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。
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。
B1 adjective /ˈbælənst/

balanced

平衡的
Meaning
keeping or showing a sensible and fair view or position; evenly arranged
Example
A balanced diet is essential for good health.
均衡的饮食对健康至关重要。
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 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 /ˈbæŋ.ɡəl/

Bangle

手镯
Meaning
a rigid bracelet or anklet worn as jewelry
Example
She wore beautiful gold bangles on her wrists.
她戴着漂亮的金手镯在手腕上。
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。
B2 adjective /ˈbruː.təl/

brutal

残忍
Meaning
extremely cruel or harsh; violent and without feeling
Example
The dictator’s rule was marked by brutal violence.
独裁者的统治充满了残忍的暴力。
C1 noun /bɑːm/

balm

香膏
Meaning
A soothing ointment or something that provides comfort or relief.
Example
The balm helped relieve the pain from her sunburn.
香膏帮助缓解她的晒伤疼痛。
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。
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。
C2 noun /brəˈvjʊrə/

bravura

Meaning
a display of great skill and brilliance, especially in music or performance
Example
The pianist delivered a bravura performance that left the audience spellbound.
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。
C2 noun /ˌbɪbliəʊˈmeɪniə/

bibliomania

书籍癖
Meaning
An extreme obsession with collecting or possessing books.
Example
His bibliomania led him to fill every room with books.
他的书籍癖使他把每个房间都塞满了书。
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 /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。
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。
C1 adjective /ˈbaʊn.tɪ.fəl/

bountiful

丰盛的 / 慷慨的
Meaning
Large in quantity; abundant; generous in giving.
Example
The farmer was grateful for the bountiful harvest.
农民感激丰收的成果。
C2 noun /ˈbɒmbæst/

bombast

夸张的语言
Meaning
speech or writing that is overly pompous and inflated
Example
His campaign speech was full of bombast but lacked real substance.
他的竞选演讲充满了浮夸的言辞，但缺乏真正的实质内容。
B2 verb /blɛnd/

blend

混合
Meaning
to mix things together smoothly; to combine harmoniously
Example
She blends the ingredients carefully.
她小心地混合了配料。
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。
C1 noun /ˌbɪbliˈɒɡrəfi/

bibliography

参考书目
Meaning
a list of books, articles, or other sources used or referred to in scholarly work
Example
The report includes a detailed bibliography at the end.
报告在最后包括了详细的参考书目。
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 verb /bɪˈstraɪd/

bestride

跨越
Meaning
To sit or stand astride something; to dominate over.
Example
The statue bestrides the city square.
这座雕像横跨城市广场。
A2 noun /belt/

Belt

皮带
Meaning
a strip of leather or cloth worn around the waist to support clothes or for decoration
Example
He tightened his belt before going for a run.
他在跑步前系紧了皮带。
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。
A2 verb /bɪld/

build

建造
Meaning
to make something by putting materials together; to construct
Example
They will build a new school in our neighborhood.
他们将在我们社区建一所新学校。
A2 noun /bel/

Bell

钟
Meaning
a hollow metal device that makes a ringing sound when struck
Example
The church bell rang at noon.
教堂的钟声在中午响起。
B2 noun /ˈbriː.ðɪŋ tɛkˌniːks/

breathing techniques

呼吸技巧
Meaning
Methods of controlling breathing to achieve relaxation and improve health.
Example
Breathing techniques help in reducing stress and anxiety.
呼吸技巧有助于减少压力和焦虑。
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.
A1 noun /ˈbʌt.ər/

Butter

黄油
Meaning
a pale yellow edible fatty substance made by churning cream
Example
He spread butter on his toast for breakfast.
他在早餐时把黄油涂在了他的烤面包上。
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。
C1 noun /brɪˈɡeɪd/

brigade

消防队
Meaning
A large group of people organized for a specific purpose, especially a military unit.
Example
The fire brigade arrived quickly to put out the flames.
消防队迅速赶来扑灭火焰。
C1 adjective bəˈnev.əl.ənt

benevolent

仁慈的, 慷慨的, 友好的
Meaning
Kind, generous, showing goodwill and kindness.
Example
His benevolent nature made him beloved.
他的仁慈天性使他非常受欢迎。
B2 verb /ˈbjuːtɪfaɪ/

beautify

美化
Meaning
to make something more beautiful or attractive
Example
The city plans to beautify the old park with trees and lights.
这座城市计划用树木和灯光美化旧公园。
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。
C1 noun /brɔːl/

brawl

争吵
Meaning
a noisy fight in a public place
Example
A brawl broke out outside the bar late at night.
夜晚在酒吧外发生了争吵。
C2 verb /bɪˈteɪk/

betake

前往；转而从事
Meaning
to go or resort to a place or course of action, especially as a response; to apply oneself
Example
After dinner, she betook herself to her room to read.
晚饭后，她去自己的房间读书。
C2 noun /ˈbækənæl/

bacchanal

狂欢派对
Meaning
A noisy party involving drinking and revelry.
Example
The festival turned into a wild bacchanal by midnight.
节日到半夜变成了一个狂欢派对。
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 /bʊʃ/

bush

灌木丛
Meaning
a plant with many small branches growing close to the ground; a shrub
Example
A rabbit was hiding under the bush.
一只兔子藏在灌木丛下。
B2 noun bjʊəˈrɒk.rə.si

bureaucracy

官僚主义
Meaning
A system of government in which most of the important decisions are made by state officials rather than by elected representatives.
Example
Excessive bureaucracy can slow down decision-making.
过度的官僚主义会减缓决策过程。
A2 noun /blʌd/

Blood

血液
Meaning
the red liquid that circulates in the arteries and veins of humans and animals, carrying oxygen to and carbon dioxide from the tissues of the body
Example
The doctor took a blood sample for testing.
医生取了一个血样进行测试。
A2 noun /ˈbɑt.əm/

Bottom

底部；底层
Meaning
the lowest point or part of something; the ground under a body of water
Example
The treasure chest was lying at the bottom of the ocean.
宝箱躺在海洋的底部。
B2 verb /blʌʃ/

blush

脸红
Meaning
to become red in the face due to embarrassment or shyness
Example
She blushed when he complimented her.
她在他夸奖她时脸红了。
C2 verb /ˈbleɪzən/

blazon

展示
Meaning
to display prominently or vividly
Example
The slogan was blazoned across the banner in bold letters.
该标语用粗体字显示在横幅上。
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 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 /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。
C2 noun /ˈbrɔːdˌsaɪd/

broadside

猛烈的攻击
Meaning
a strong verbal attack or a sheet of paper printed on one side
Example
The politician launched a broadside against his opponent.
政治家对他的对手发起了猛烈的攻击。
B2 adjective /brɪsk/

Brisk

迅速的; 精力充沛的; 活力四射的
Meaning
quick and energetic; lively; vigorous
Example
She took a brisk walk in the morning to feel energized.
她早晨快步走，感到精力充沛。
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。
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。
B2 noun /ˈbʌf.ə.loʊ/

Buffalo

水牛
Meaning
a large wild ox with heavy horns; American bison
Example
The buffalo grazed peacefully in the meadow.
水牛在草地上安静地吃草。
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。
B1 noun /ˈbɒksər/

boxer

拳击手; 平角内裤; 拳师犬
Meaning
a person who fights in the sport of boxing; a type of short loose-fitting underwear; a breed of medium-to-large dog
Example
The boxer trained hard every morning before the championship match.
那名拳击手在冠军赛前每天早上刻苦训练。
A2 noun /ˈbɪznəsmæn/

businessman

商人
Meaning
a person engaged in commercial or industrial business activities
Example
The businessman invested heavily in new technology.
商人们在新技术上进行了大量投资。
A1 adjective /bæd/

bad

坏
Meaning
not good; unpleasant, harmful, or of poor quality
Example
The milk smells bad, so don’t drink it.
牛奶闻起来很糟，所以不要喝。
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。
C2 noun /brɪˈtæniə/

britannia

不列颠
Meaning
the personification of Britain, often shown as a woman with a helmet and shield
Example
Britannia has been a symbol of Britain since Roman times.
不列颠自罗马时代起就是英国的象征。
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。