首先，外星人不得不将我们清除出地球，收拾我们污染后留下的烂摊子，并且改造整个生物圈使它们可以适应。

First they'd have to clear us out and then clean up our pollution mess and rework the entire biosphere to accommodate them.

youdao

首先，外星人不得不将我们清除出地球，收拾我们污染后留下的烂摊子，并且改造整个生物圈使它们可以适应。

First they'd have to clear us out and then clean up our pollution mess and rework the entire biosphere to accommodate them.

youdao