Underdrainage
n. 暗渠排水, 地下排水
🗣️ 情景例句
I have been talking to a group of salesmen
我一直在与一群推销人员谈话
Better than nothing.
有总比没有好。
No, I don't. Would you get it, please?
没有。你帮我拿一下吧。