move/go/close in for the kill

释义：本意是形容猛兽“准备给猎物致命一击”，引申用来形容在辩论或比赛中彻底击败占下风的对手。可以在留学文书中用来生动体现自己所处的逆境。

例句：
Murphy moves in for the kill, but Delmar rolls away.
April 24th, this is when the Romney campaign goes in for the kill and puts everything into beating Rick Santorum in his home state of Pennsylvania.