a bundle of nerves
US /ə ˈbʌndl əv nɜrvz/
UK /ə ˈbʌndl əv nɜrvz/

1.
非常紧张, 神经兮兮
a person who is extremely nervous or anxious
:
•
Before her big presentation, she was a bundle of nerves.
在她做重要演讲之前,她非常紧张。
•
Waiting for the exam results, he was a bundle of nerves.
等待考试结果时,他非常紧张。