Underdrain
n. 阴沟, 地下沟道, 盲沟, 暗渠
🗣️ 情景例句
Well, what do you want to do?
那你想干什么？
Money is a good servant but a bad master.
要做金钱的主人，莫作金钱的奴隶。
At night, families often stay in the open air near their houses.
晚上很多人家常呆在附近户外。