knee cutter

例句：

1. 1. This knee cutter is perfect for cutting through tough materialslike wood.
   这个膝盖切割器非常适合切割像木头这样的硬材料。
2. 2. Thenurse used the knee cutter to remove a large splinter from his leg.
   护士用膝盖切割器从他的腿上取出了一个大刺。
3. 3. He was using the knee cutter to clean up the mess after theaccident.
   他在事故后用膝盖切割器清理了现场的混乱。