Melaconite
[礦]土黑銅礦
??? 情景例句
Are you a citizen of the People's Republic of China?
你是中華人民共和國的公民嗎？
A hero is known in the time of misfortune.
時勢造英雄。
He was amused too, because he never expected the bicycle to be found.
但又感到非常好笑，因為他從未指望那輛自行車還能找到。