bounce/ bauns /

1.vi.[ball+] 
弹起

2.vi.[hair+] 
跳动

3.vi.[cheque+] 
退回

4.vt.[+ball] 


5.vt.[+cheque] 
拒付

6.noun [c/u] [of ball] 
弹起

to bounce on
 [+bed etc] 蹦跳上
to bounce up and down
上下跳动
to bounce in/out {etc}
 [person+] 蹦跳地进来/出去{等}