double edge knife saw

例句：

1. 1. He used a double-edged knife to cut through the thick ice.
   他用一把双刃刀切穿了厚厚的冰。
2. 2.The double-edged saw was used to trim the edges of the wood.
   双刃锯被用来修剪木材的边缘。
3. 3.The double-edged knife saw is a versatile tool that can be used for cutting, sanding, and polishing.
   双刃刀锯是一种多功能工具，可以用来切割、打磨和抛光。