Chalcolamprite
氟硅铌钠矿
🗣️ 情景例句
I want a package deal including airfare and hotel.
我需要一个成套服务，包括机票和住宿。
I'm exhausted.
我疲倦不堪。
I can't understand why he is being so selfish. He isn't usually like that.
我不明白他此刻怎么这么自私。他平时不这样。