常見例句用作名詞 (n.)The soldiers sharpened up their knives.戰(zhàn)士們把刀磨得鋒利。They ground the knife on a grindstone.他們在磨刀石上磨刀子。You must be very careful with this sharp knife.你用這把鋒利的刀子必須很小心。 返回 knives