B

　　1.begin v开始

　　It began to rain.天开始下雨。

　　The film begins at two o'clock. 电影两点钟开始。

　　After running half a kilometer, I began to feel tired.

　　跑了500米之后，我开始感到累了。

　　2.believe v

　　1)相信;信任

　　I don't believe you.我不信你说的话。

　　You can't believe anything she says.你不能相信她说的话。

　　Most people believe that the strike will last for at least a week.

　　多数人相信,罢工至少会延续一个星期。

　　I believe him (to be) right.我认为他是对的。

　　2) to believe sb. 信任某人

　　3.belt n腰带

　　I need a belt keep up my trousers. 我需要一条腰带系裤子。

　　4.Betty n 人名。贝蒂

　　5.bicycle n自行车，脚踏车

　　She goes to work on/by her bicycle.她骑自行车上班。

　　6.bin n垃圾箱

　　dust bin 垃圾箱

　　7.biscuit n饼干

　　8.bookshop n书店

　　9.boring adj 令人厌烦的

　　10.break v broke, broken, breaking 打破;碰破;折断;打碎

　　The stone broke the window. 石头打坏了窗子。

　　The cup broke on the floor. 杯子摔碎在地板上了。

　　You'll break your neck if you aren't more careful! (喻)

　　你如果不加倍小心,你会摔死的!

　　10.bridge n桥

　　a bridge across the river 架在河上的桥

　　Don't cross the bridge until you come to it.(谚)

　　不要杞人忧天。;莫自寻烦恼。

　　11.bring v拿来;带来

　　Bring me the book. 把那本书带给我。

　　Why don't you bring you favourite girl along?

　　你为什么不带你最喜欢的女儿一块儿来呢?

　　Bring the children back from the kindergarten at four o'clock.

　　下午四点把孩子们从幼儿园接回来。

　　When you go to the post office, will you please bring some stamps back for me?

　　你去邮局时能不能给我带些邮票回来?

　　12.brush n and v

　　13.business n职业;职务

　　1) 买卖;交易

　　Business has been bad this year. 今年生意很糟糕。

　　2)职责;本分

　　It's a teacher's business to make children learn.

　　使学生学习是老师的责任。

　　14.businessman/woman n

　　15.burn v燃烧

　　The house is burning. 房子烧起来了。

　　16.bus stop n公共汽车站

　　17.butter n黄油

　　peanut butter 花生酱

　　18.butterfly n 蝴蝶

　　是以字母B开始的单词和短语。

　　B

　　1.begin v开始

　　It began to rain. 天开始下雨。

　　The film begins at two o'clock. 电影两点钟开始。

　　After running half a kilometer, I began to feel tired.

　　跑了500米之后，我开始感到累了。

　　2.believe v相信;信任

　　I don't believe you.我不信你说的话。

　　You can't believe anything she says. 你不能相信她说的话。

　　Most people believe that the strike will last for at least a week.

　　多数人相信,罢工至少会延续一个星期。

　　I believe him (to be) right. 我认为他是对的。

　　3.to believe sb. 信任某人

　　4.belt n腰带

　　I need a belt keep up my trousers.

　　我需要一条腰带系裤子。

　　5.Betty n

　　6.bicycle n自行车，脚踏车

　　She goes to work on/by her bicycle.她骑自行车上班。

　　7.bin n垃圾箱

　　dust bin 垃圾箱

　　8.biscuit n饼干

　　9.bookshop n书店

　　10.boring adj 令人厌烦的

　　11.break vbroke, broken, breaking 打破;碰破;折断;打碎

　　The stone broke the window. 石头打坏了窗子。

　　The cup broke on the floor. 杯子摔碎在地板上了。

　　You'll break your neck if you aren't more careful! (喻)

　　你如果不加倍小心,你会摔死的!

　　12.bridge n桥

　　a bridge across the river 架在河上的桥

　　Don't cross the bridge until you come to it.(谚)

　　不要杞人忧天。;莫自寻烦恼。

　　13.bring v拿来;带来

　　Bring me the book. 把那本书带给我。

　　Why don't you bring you favourite girl along?

　　你为什么不带你最喜欢的女儿一块儿来呢?

　　Bring the children back from the kindergarten at four o'clock.

　　下午四点把孩子们从幼儿园接回来。

　　When you go to the post office, will you please bring some stamps back for me?

　　你去邮局时能不能给我带些邮票回来?

　　14.brush n and v