Alunitization
明矾石化
🗣️ 情景例句
It's not the same, Richard.
那是不一样的， Richard。
Know something like the palm of one's hand.
熟知其事，了如指掌。
It seems that man was making a real effort to understand the seasons 20,000 years earlier than has been supposed.
看来人类早就致力于探索四季变迁了，比人们想像的要早20，000年。