Montgomeryite
[矿]斜磷铝钙石
🗣️ 情景例句
I need some good photos for my advertising, Mr. Stewart.
我做广告需要一些好照片， Stewart先生。
Where will they be going for their holiday?
他们休假时要上哪去？
They dare not tell the truth.
他们不敢说实话。