flail cutter

例句：

1. 1. The farmer used a chain saw to cut the trees for firewood.
   农民用链锯砍树做柴火。
2. 2.The construction workers used chain saws to clear the path for the new road.
   建筑工人用链锯清理出新路的路径。
3. 3. The chainsaw cutter was very useful in cutting down the large tree.
   链锯切割机在砍倒这棵大树时非常有效。