Dipnictide
二磷族元素化物
🗣️ 情景例句
We started by making safety equipment for many sports.
我们是以做运动产品的安全器材起家的。
The finest diamond must be cut.
玉不琢不成器。
It is one of the most unpleasant discoveries which we all make that we must decline in this way,
人人必然会衰老。