有生以来第一遭

first time in one's life

饶了他这一遭吧。

Let him off this time.

用绳子绕两遭

wrap the string around twice

绕运动场跑三遭儿

run three laps of the exercise ground

遭毒手

be murdered

常遭洪水

often get flooded

必遭失败

must inevitably fail