n.刀身；鋒利的東西

The invader thrust the blade of his bayonet into the woman's heart. 侵略兵把刺刀的刀身刺入那個婦人的心臟。

Blade and handle are the component parts of a knife. 刀身和刀柄是一把刀的組成部分。

You must be very careful with this sharp knife. 你用這把鋒利的刀子必須很小心。

He handed me a knife with a keen edge. 他遞給我一把鋒利的刀。