These knives are sharp
刀子───knife;锋利───sharp
This knife needs sharpening.───这把刀需要磨了。
He went camping with a knife stuck in his belt each time.───他每次去露营都佩带腰刀.
The knife fell from his nerveless hand.───那把刀从他无力的手中落下.
The knife sliced his jacket.───那把刀划破了他的上衣。
You are welcome to the loan of my knife.───你可随意借用我的小刀.
The boy traded his knife for a cricket bat.───那男孩用他的刀子换了一个板球棒.
Trim off the excess pastry using a sharp knife.───用一把快刀切去多余的饼皮。
Blade and handle are the component parts of a knife.───刀身和刀柄是一把刀的组成部分.