21、同命相连。
The same boat.
22、亡羊补牢。
mend the fold after the sheep have been stolen。
23、一无所获。
have gained nothing。
24、无能为力。
incapable of action。
![](https://img.tjyibeijia.com/20180601/20180604084955uvw1zu3tkbh.jpg)
25、别说的太早。
Don't say it too soon.
26、写封信给我。
Write a letter to me.
27、好久不见了。
Long time no see.
28、改天的邀请。
Another invitation.
![](https://img.tjyibeijia.com/20180601/2018060408482924oesoriaal.jpg)
29、终点;最后。
End; end.
30、派得上用场。
Come in handy.