Barrandite
铝红磷铁矿
🗣️ 情景例句
Study hard and study everyday, if you want to master the English language.
如果你想精通英语的话，就得每天刻苦学习。
It doesn't make much difference to me what you do.
你干什么对我没有多大关系。
Yes, I slept very well all night, thanks.
好的，我一个晚上都睡得很踏实，谢谢。