egg shell fragments 蛋壳碎片
eggshell thin 极薄的
walk on eggshells 如履薄冰
A: Be careful, the shell is as thin as an eggshell.
A：小心点，这层壳薄得像蛋壳一样。
B: I'll be very gentle with it.
B：我会非常轻手轻脚的。
1) 蛋壳
2) 极薄的
3) 脆弱的状态
1. 蛋壳
noun
1. The outer covering of a bird's egg.