Superanthracite
超无烟煤; 变无烟煤
🗣️ 情景例句
He started with them almost forty years ago.
他在那里做了快四十年了。
Today, I'd like to show you something which I'm sure you'll find interesting.
今天我要向你们展示一些东西，我相信你们会感兴趣的。
My name is Han Meimei. What's your name?
我叫韩梅梅，您呢？