◎ 刀口 dāokǒu (1) [edge of knife]∶刀上用来切削的锋利的一边 (2) [knife-edge]∶像刀样锋利的窄棱或窄边(如天平或精密仪器上用以减少摩擦的轴上的) (3) [the right spot]∶好的或恰当的地方 把劲儿使在刀口上 (4) [where it's needed most;the crucial point;right place where sth can be put to the best use]∶最需要的地方 钱要花在刀口上
英文翻译
1.(刀刃) cutter point; tool edge; knife edge 2.(比喻最能发挥作用的地方) where a thing can be put to best use; the crucial point; the right spot 3.(动手术时开的口子) cut; incision