Schungite
[地质]次石墨
🗣️ 情景例句
Good-bye, Richard, and good luck. See you in two weeks.
再见， Richard， 祝你好运。两周后见。
Bite the hand that feeds one.
恩将仇报。
Did she learn all by herself? How clever.
她全是自己学会的吗？多么聪明啊！