痛失良机: let something slithrough one's fingerslet something slithrough one’s fingers
行事: 1.(办事; 做事) act; handle matters 短语和例子按计划行事 act according to plan; 见机行事 act according to circumstances; 照章行事 go by the book; 他决不会那样愚蠢地行事。 it is not at all likely that he will act so foolishl