bow chain saw

例句：

1. 1. He used a bow chainsaw to cut the tree down.
   他用链锯砍倒了那棵树。
2. 2. Thehunter used a bow chainsaw to clear the forest.
   猎人用链锯清理了森林。
3. 3. Theold man was using a bow chain sawto fell trees for firewood.
   老汉用链锯伐木做柴火。