Undercourse
底层, 垫层, 在花砖或瓷砖之下的底层
🗣️ 情景例句
I'd like to rent a car, please. I need it for business.
我想租一辆汽车，是为了业务上的需要。
'Tis a good horse that never stumbles.
好马不失蹄。
Yes, I'm afraid you're right. I'll go tomorrow afternoon.
恐怕你说得对。我明天下午就去。