n.刀身；锋利的东西
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个妇人的心脏。
Blade and handle are the component parts of a knife. 刀身和刀柄是一把刀的组成部分。
You must be very careful with this sharp knife. 你用这把锋利的刀子必须很小心。
He handed me a knife with a keen edge. 他递给我一把锋利的刀。
