寸步

1. 国际法这一领域，不熟悉其复杂性则寸步难行。
   International law is a minefield for anyone not familiar with its complexity.
2. 旅行时带着两个孩子和一个沉重的手提箱，真是寸步难行。
   Travelling is difficult when you're encumbered with two small children and a heavy suitcase.

步的英语翻译：