收割机

例句：

1. 1.The farmer used a harvester to cut the wheat.
   农民使用收割机割小麦。
2. 2. The harvester is very efficient at collecting crops.
   收割机在收集农作物方面非常高效。
3. 3.The harvester has replaced many manual laborers in the field.
   收割机已经取代了许多农田中的手工劳动者。