Underdrain
n. 阴沟, 地下沟道, 盲沟, 暗渠
🗣️ 情景例句
That's just what I think.
那正是我所想的。
No, man. You're the one who blew it.
不，老兄，你才是败事的一个。
He can't make it today. He has to stay at home.
他今天不行了。他得呆在家里。