swing saw

例句：

1. 1. Theswing saw was used to cut the logs into boards.
   摇摆锯被用来将原木切割成木板。
2. 2. The oldman used a swing sawto fell trees in his backyard.
   那位老人用摇摆锯在后院砍树。
3. 3. The swing saw is an essentialtool for woodworking.
   摇摆锯是木工工作中必不可少的工具。