gutter|guttering|gutters

雨后，树叶堵住了街道旁的排水沟。

After the rain, leaves clogged the ___gutter along the street.

暴风雨过后，我们需要检查屋顶的排水槽是否有损坏。

After the storm, we need to check if the ___guttering on the roof is damaged.

我们需要清理屋顶排水沟里的树叶。

We need to clean the leaves out of the ___gutters.