Aluminas
(alumina 的復數) n. 礬土\\n[化] 礬土; 氧化鋁
??? 情景例句
Mrs. Stewart, may I have this dance?
Stewart太太，我可以請你跳這支舞嗎？
Not at all. Go ahead.
好，請吧。
I can't make this machine run properly.
我無法使這部機器正常運轉。