Dauphinite
镁钛矿
🗣️ 情景例句
What does NATO mean?
NATO是什么意思？
We can't make a decision without thinking it over.
我们不能不考虑，就作决定。
By the way, I came into this classroom last Saturday morning, and it was not as clean as usual.
顺便提一句，上星期六上午我来到这个教室时