Chalkogenide
硫属化物
🗣️ 情景例句
And remember,
记住，
Work hard, otherwise you'll be sorry.
努力用功，否则你会后悔的。
I was having dinner at a restaurant when Tony Steele came in.
我正在一家饭馆吃饭，托尼。斯蒂尔走了进来。