Nolascite
砷方铅矿
🗣️ 情景例句
Certainly, sir. I'll get a taxi for you. Are you going directly to the cinema?
好的，先生。我会帮您叫车的，您直接去电影院吗？
To learn how to count
学习记账
Mary is still writing letters. She's been writing letters all day.
马力还在写信，她写了一整天的信。