Minerogenic
成礦的
??? 情景例句
So soon? Can't you stay a little longer?
就要走啊？你不能多呆一會兒嗎？
It's not too heavy,but I don't know the exact weight.
它不是太重的，但是我不知道準確的重量。
Were you in San Francisco at the time of the big earthquake in 1989?
1989年舊金山大地震時，你在那兒嗎？