放过机会

let an opportunity slip by

放过农时

miss the right season for farming

好时机被放过了。

The opportunity was missed.

不放过

not let off

不能轻易放过他。

Don't let him off lightly.

不会白白放过他的。

I won't let him away with that.

不放过一个坏人，不冤枉一个好人

not let off a bad person or wrong a good person