天有不测风云英文

The day contains sudden changes of fortune, and a person may hava any moment of disaster or blessing.

It is the unforeseen that always happens.【数学之美】很高兴为你解答，不懂请追问！满意请采纳，谢谢！O(∩_∩)O~

it rains some time

Accidents will happen.

Something unexpected may happen any time 这是意译Storms gather without warning in nature 这是直译