Underpaint
n. [画]画底色
🗣️ 情景例句
It's an excellent title.
这是个绝妙的书名。
Prepare for a rain day.
未雨绸缪。
No, not any more. It used to be free but now you have to pay to get in.
不，不再免费了。过去是免费，可现在得付钱才能进去呢。