Schungite
[地质]次石墨
🗣️ 情景例句
He came up with a bright idea.
他想到一个妙主意。
People go to visit their parents, relatives and friends.
人们出门探望父母、亲威和朋友。
He found it very difficult to get to sleep and he was rather angry with the man upstairs.
他觉得这样很难入睡， 他对楼上的人相当生气。