sawing

例句：

1. 1. He used a saw to cut the wood into pieces.
   他用锯把木头切成了块。
2. 2. The carpenter used a saw to make the door.
   木匠用锯做了门。
3. 3. She was sawing wood for the fire when she heard the alarm.
   她听到警报声时，正在锯木准备生火。