/snæg ||; snæg/noun [C] a small difficulty or disadvantage that is often unexpected or hidden 隐伏或未料到的小困难: His offer is very generous -- are you sure there isn't a snag?他提出的条件很优厚，你肯定不会有意外的困难吗？
snag²
/snæg ||; snæg/verb [T] (snagging;snagged) to catch a piece of clothing, etc on sth sharp and tear it 钩破（衣物等）