Counterdrain
n. 河堤排水沟, 辅助沟
🗣️ 情景例句
It's the first thing people will see when they come in.
这是人们走进来所看到的第一 件东西。
To promise and give nothing is comfort to a fool.
允诺而不费什么是给愚蠢人的安慰。
It's nothing serious.You'd better have a good rest.
（病情）不太严重。你最好好好休息一下。