The purpose of the cutting edge of a knife is to concentrate the force that's being applied at the handle.

刀刃的作用就是把人们用在刀把上的力集中起来。

youdao

The purpose of the cutting edge of a knife is to concentrate the force that's being applied at the handle.

刀刃的作用就是把人们用在刀把上的力集中起来。

youdao