Ifnot for the mass extinctions of the past, we would likely not be hereto talk about it.

如果不是因为过去的大灭绝，我们可能不会坐在这里来讨论这件事。

youdao

Ifnot for the mass extinctions of the past, we would likely not be hereto talk about it.

如果不是因为过去的大灭绝，我们可能不会坐在这里来讨论这件事。

youdao