Mangan
[化] 锰Mn
🗣️ 情景例句
Let's take a ten-minute break.
我们休息十分钟吧。
Did the chicken come before the egg?
先有鸡还是先有蛋？
In this way, we have learned all that we know of the laws of astronomy,
例如，用这种方法，我们完全掌握了天文学的规律。