15. behave yourself 行为规矩些　　　　

　be on one's good behaviour　　　 举动规矩, 检点

14. begin with　 ( end with )　　

to begin with 首先　　

at the beginning of 在…初　　　　　　

from the (very ) beginning 从…一开始

13. beg a favour of sb 向…乞求帮助　　　 go begging 乞讨　 　　　

beg sb to do 乞求

12. long before 很久以前　　　 before long = soon = presently不久　

11. beat sb 打败…　　　　

The waves beat the shore.浪打岸

My heart beats fast. 心跳快　

10. bear = stand = put up with　 bear the red cross标有　　

bear a share of responsibility承担

9. be able to　 be bad for　 be busy with　　 be covered with　 be famous for　 be good at

8. be based on 以…为基础　　　　　　　

on the basis of 在…基础上，在…前提下

7. beat a bargain with sb 与…讨价还价make a bargain with sb 与…成交

pick up a bargain 买到便宜货

6. barely　 (never, rarely, hardly, scarcely, seldom)　　　

He barely goes there, does he?