Davisonite
[矿]板磷钙铝石
🗣️ 情景例句
Australia is a unique country.
澳大利亚是世上独一无二的国家。
What do you want to be when you grow on?
当你长大以后，你想做什么？
Where are you staying in Guangzhou? I hear that the hotels there are very expensive.
在广州你打算住在哪儿？我听说那里的旅馆收费很高。