agricultural drain

例句：

1. 1. The agricultural drainis a crucial part of the irrigation system.
   农业排水沟是灌溉系统的重要组成部分。
2. 2.The farmers have to deal with the agriculturaldrains on their farms.
   农民们必须处理他们农场上的农业排水沟。
3. 3. Theagricultural drain was filled with water, preventingany further damage.
   农业排水沟被水填满，防止了进一步的损害。