like a shot 立刻，飞快的，迫不及待的

　　I heard something and I was out of bed like a shot

　　我听到了一些声音，立即从床上起来了。

　　When I told him the idea he said yes like a shot.

　　当我告诉他这个主意时他立马就答应了。

　　疯狂练习吧！