be shaking in (your) boots/shoes
to be very frightened or anxious.
Damon was shaking in his shoes when he heard all the shouting.
英语词组固定搭配大全包含18674条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。