Rickardite
碲铜矿
🗣️ 情景例句
Hi, what can I do for you?
嗨，你好。我能为你做些什么？
Happiness takes no account of time.
幸福不觉光阴过。
But the competition of man against man is not the simple process envisioned in biology.
但是，人与人的竞争并不像生物学中想像的那样是一个简单过程。