fret one's gizzard

例句：

1. 1.She was fretting over the exam results all night.
   她整晚都在为考试结果而烦恼。
2. 2. The child is fretting because he doesn't know how to solve the problem.
   这个孩子因为不知道如何解决这个问题而感到焦虑。
3. 3. He fretted about his upcoming presentation until the last minute.
   他直到最后一刻还在担心即将到来的演讲。