Diboride
二硼化物
🗣️ 情景例句
I guess we'll be seeing Alexandra again.
我想我们不久又将见到Alexandra。
Look before you leap.
三思而后行。
and it is only in the seas and rivers, and sometimes lakes, where mud and sit have been continuously deposited,
所以只有在泥沙不停淤积的海洋和江河里，有时在湖泊里，