lee trough

例句：

1. 1. The farmer used touse a lee trough to collectrainwater for his garden.
   这位农民过去使用一个沟渠来收集雨水供他的花园使用。
2. 2. The old mill was located ina lee trough that overlooked theriver.
   旧磨坊位于一个俯瞰河流的沟渠中。
3. 3. The farmers had to clearthe lee troughs to makeway for the new road.
   为了修建新路，农民们不得不清理沟渠。