walk upon eggs

• 如履薄冰； 谨慎小心地行事

walk upon eggs的用法和样例：

例句

1. A man has to walk as if on eggs.
   做人简直如履薄冰。
2. When he went in to the master for a day off,he looked as though he trod upon egg.
   当他为了请一天假而进去见主人的时候，他的样子简直如履薄冰。