Diboride
二硼化物
🗣️ 情景例句
My mother is terrific at any kind of sewing.
我母亲做任何针线活都棒极了。
What is your part's name?
对方的姓名是什么？
The questions were very easy.How about you, Gary?
题目很容易。加里，你怎么样？