Undercourse
底层, 垫层, 在花砖或瓷砖之下的底层
🗣️ 情景例句
You should take the number 1 train to Van Cortlandt Park.
搭一路车到Van Cortlandt公园下车。
Now that you are pretty well again, you should work harder.
你的身体既然已经完全康复，你就应该更加努力工作。
Why don't you hire a car and drive around for a couple of weeks?
你为什么不租部车四处转上一两个星期呢？