troughing

例句：

1. 3.
   在农业中
2. 1. The farmer used a tractor to trough the fields before planting.
   农民使用拖拉机翻耕田地，以便播种。
3. 2. The soil was soggy and needed to be troughed before planting.
   土壤湿润，需要翻耕后才能种植。
4. 3. Troughing is an essential step in preparing the soil for planting.
   翻耕是准备土壤以备种植的关键环节。