gutteral

例句：

1. 1. The farmer had to repair the gutteral after heavy rains.
   农民在大雨后不得不修理排水沟。
2. 2.The construction workers were busy cleaning the gutteral on the roof.
   建筑工人忙于清理屋顶的排水沟。
3. 3. The old house needed a new gutteral to prevent water damage.
   这所旧房子需要一个新的排水沟以防止水损。