Undercourse
底层, 垫层, 在花砖或瓷砖之下的底层
🗣️ 情景例句
I thought you wanted to go to Columbia.
我还以为你只想上Columbia大学。
Is that right?
那样对吗？
The farmer cut off part of his foot to make sure he could not run away again.
农场主把他的一只脚砍掉了一块，以确保他不能再逃跑。