Klockmannite
六方硒铜矿, 蓝硒铜矿
🗣️ 情景例句
That's five points.
五分。
Hasty love is soon hot and soon cold.
草草率率谈恋爱，热得快也冷得快。
He must strive continually to think of, and use, form in its full spatial completeness.
他必须勤于想像并且利用形体在空间中的完整性。