on his mind

• adj. 挂在心上(担心焦虑)

on his mind的用法和样例：

例句

1. He has nothing but money on his mind.
   他思想上除了钱外没有别的。
2. I could see that he had something on his mind, and soon I rapped to what it was.
   我看出他有心事，不久就知道那是怎么一回事了。
3. The spectre of unemployment was always on his mind.
   他心头一直萦绕著可能失业的恐惧感。
4. The thought that he was responsible for her death preyed on his mind.
   他一想到自己对她的死负有责任就感到心如刀割。