Heteroxanthine
[化] 7-甲黃嘌呤; 7-甲基黃嘌呤\\n[醫(yī)] 雜黃嘌呤, 甲基黃嘌呤
??? 情景例句
He's not as lucky as I am
他不像我這樣幸運(yùn)地
This is a desk.
這是一張桌子。
They were expecting a valuable parcel of diamonds from South Africa.
他們正期待從南非來(lái)的一個(gè)裝著鉆石的貴重包裹。