Holocoen
生态系(统), 群落社会
🗣️ 情景例句
I knew it! I knew it!
我就知道是这样 ，我就知道是这样！
I don't know what I should have done without your help.
要不是您的帮助，我真不知道该怎么办。
We have mainly adopted some usual international practices.
我们主要采取了一些国际上的惯例做法。