“walk on eggshells”不是指“走在蛋壳上”，其正确的含义是小心翼翼地做事；小心谨慎；如履薄冰。

【例句】
When my mother is staying at our house, I feel like I'm walking on eggshells.
当我妈妈住在我们家的时候，我凡事都要小心翼翼。

I always felt as if I had to walk on eggshells around him so that I wouldn't hurt his feelings.
为了不让他伤心，我总是如履薄冰地待在他身边。