士别三日，刮目相看 英文怎么说

这个成语在汉语中有两种情况会说：

1.劝别人不要看不起曾经落魄的人。
All dogs have their days.也说: Every dog has its day.

2.陈述应该以发展的眼光看待一个人。
After a period of absence，one may have changed for the better.

刮目相看: [ guā mù xiāng kàn ]

1. regard (a person) with special esteem

After a period of absence ,one may have changed for the better.士别三日，刮目相看。

同意After a period of absence，one may have changed for the better.
用All dogs have their days显然不是劝别人不要看不起曾经落魄的人的意思.更象在说小人得志.

After a period of absence ,one may have changed for the better.

look at sb. with new eyes after a period of time