So since that's the easiest scenario, you can probably be sure it's not going to be too frequently that you're just given the energy, right, that might be too easy.

所以既然那是最简单的情况，你可以确信只给你提供能量值的,这种情况不太可能发生太多，对，因为那太简单了。

麻省理工公开课 - 化学原理课程节选

You just got to be looking around all the time to make sure you are not going to be run down.

你随时观察四周以确保你不会被撞倒。

伦敦的蓝色自行车 - SpeakingMax英语口语达人