我需要一把小刀来切这个苹果。

I need a knife to cut the apple.

youdao

我不明白我为什么需要一把小刀？

I can't understand what I need a knife for?

youdao

你有小刀吗？我需要一把锋利的。

Have you any knives? I need a sharp one.

youdao

你有小刀吗？我需要一把锋利的。

Have you any knives? I need a sharp one.

youdao