Definition
to be in a situation that is too difficult to manage or cope with.
深陷其中，無法脫身
He didn't realize he was in over his head when he took on the project.
他接手這個專案時沒有意識到自己已經力不從心。
She tried to juggle two jobs at once, but she quickly found that she was in over her head.
她試圖同時兼顧兩份工作，但很快就發現自己力不從心。
Before you offer your help, make sure you can handle it, or you'll find yourself in over your head.
在提供幫助之前，請確保你能應付，否則你會發現自己力不從心。