Glucinite
磷鈹鈣石
??? 情景例句
What do you do for a living?
你是做什么的？
What's your favorite musical instrument?
你最喜歡的樂器是什么？
My old friend, Harrison, had lived in the Mediterranean for many years before he returned to England.
我的老朋友哈里森在回到英國以前曾多年居住在地中海地區。