knife-blade的用法和樣例：
例句
用作名詞 (n.)
- 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(gè)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。
