dividing knife

例句：

1. 1. She uses a sharpening stone to keep her knivessharp.
   她使用磨石来保持她的刀锋利。
2. 2. The chef needs a good cuttingknife for preparing the salad.
   厨师需要一把好的切菜刀来准备沙拉。
3. 3. Thechef used a large, serrated knifeto cut through the tough meat.
   厨师用一把大的、有锯齿的刀来切这块硬肉。