Davisonite
[矿]板磷钙铝石
🗣️ 情景例句
How was your weekend?
你们的周末过得怎么样
The man is a space scientist.
这个人是太空科学家。
Textile business has become more and more difficult since the competition grew.
随着竞争的加剧，纺织品贸易越来越难做了。