Sabstratum
(颜料形成的)胶层
🗣️ 情景例句
I always wanted to travel to Europe but I was afraid that language would be a problem.
我总想去欧洲旅游，但我又怕语言是个问题。
That's nice. Where?
好啊，去哪儿了？
How long have you worked in this factory?
你在这家工厂工作有多长时间了？