bachelor

n.

an unmarried man  单身汉

Unit 6

bankrupt 

a.

not having enough money to pay debts 破产的

Unit 1

barely

ad.

hardly; almost not 几乎不

Unit 10

behave

v.

to act in a particular way （行为 ）表现

Unit 8

bestow

v.

to present (sth.) as a gift; to confer  赠与

Unit 4

better

v.

to improve  改善

Unit 4

blow

v.

to send out a strong current of air 吹气； 呼气

Unit 8

bond

n.

a certificate issued by a government or a company acknowledging that money has been lent to it and will be paid back with interest 有息债券；公债

Unit 1

bother

v.

to annoy or trouble (sb.) 困扰； 烦扰

Unit 9

bounce

v.

to spring back or up again  弹回

Unit 4

bow

v.

to bend one's body and head as a greeting 鞠躬；点头

Unit 8

n.

 an act of bending forward 鞠躬；点头

brilliant

a.

very intelligent 极聪明的

Unit 6

brochure

n.

a booklet 小册子

Unit 2