Semifusinite
[地质]半丝碳煤素质
🗣️ 情景例句
Sometimes he's very sad.
他有时很忧悒。
Wherever you go you'll meet a friend.
不管你到哪里，你总会遇到一个朋友。
Not at all. It was a pleasure!
不客气。那样我很高兴。