Lee soon discovered that it would not be easy to break out of the trap that Richmond and Petersburg had become.

VOA: special.2009.12.17

So obviously, not a good thing, but amazingly easy to fall into this trap.

天呐，他真棒，所以很明显，这不是一件好事，但是很容易上当。

麻省理工公开课 - 计算机科学及编程导论课程节选