Davisonite
[礦]板磷鈣鋁石
??? 情景例句
I don't think I've had the pleasure.
我想我未曾有幸遇見過你。
If you would have a thing well done,do it yourself.
想把事情來做好，就得親自動手搞。
So we never feel lonely.
因而我們從未感到孤單。