in a jerk

例句：

1. 1. He was in a jerk when he saw his boss's car pull up outside.
   他突然看到老板的车停在外面的时，显得有些不知所措。
2. 2. She was in a jerk when she realized that she had left her keys at home.
   她突然意识到她把钥匙落在家了。
3. 3. The sudden rain made everyone in the room in a jerk.
   突如其来的雨让房间里的每个人都措手不及。