但是直到发现一些在今天仍在显著进行的景观改造，以及正在生成的惊人而罕见的地貌特征，这是第一次。

But to find some landscape modification apparently taking place today, and producing these spectacular and unique features, is a first.

youdao

但是直到发现一些在今天仍在显著进行的景观改造，以及正在生成的惊人而罕见的地貌特征，这是第一次。

But to find some landscape modification apparently taking place today, and producing these spectacular and unique features, is a first.

youdao