Pyrocrystalline
a. 火成晶质的
🗣️ 情景例句
What would you say is the most popular sport in your country, Mr. Lu?
陆先生，你们国家什么运动最流行？
You'd better go at once, hadn't you?
你最好马上走，不对吗？
Thanks, Mum.
谢谢，妈妈。