downspout

/ˈdaʊnspaʊt/ 28
A downspout is a pipe attached to the side of a building, through which rainwater flows from the roof into a drain. 排水管

noun [具体名词]水落管,落水管(将雨水从屋顶排至水沟)

He installed rain gutters and downspouts.
他安装了雨水槽和排水管。

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