on hot coals

• 心神不宁

on hot coals的用法和样例：

例句

1. Various small matters preyed on my mind and robbed me of all peace.
   各种琐事使我感到烦恼，弄得我心神不宁。
2. He's still hung up on the bad grades he got last semester.
   他仍然因为上个学期糟糕的分数而心神不宁。