go through the mill
US /ɡoʊ θruː ðə mɪl/
UK /ɡoʊ θruː ðə mɪl/

1.
吃盡苦頭, 飽受折磨
to experience a difficult or unpleasant period of time, often involving hard work or suffering
:
•
He really went through the mill during his first year at the company.
他在公司第一年真的吃盡了苦頭。
•
After the divorce, she went through the mill emotionally.
離婚後,她在情感上飽受折磨。