每一次大灭绝可能都有不同的原因。

Each mass extinction may have had a different cause.

youdao

在这种假设下，大灭绝的发生是非常突然的。

The mass extinction would have occurred very suddenly under this hypothesis.

youdao

但中生代本身便是以一次大灭绝开始的。

But the Mesozoic, too, began with a mass extinction.

youdao

蚊虫大灭绝就要开始了。

The mosquito genocide is beginning.

youdao

与二叠纪末期大灭绝有关的沉积层，成为我们下一个研究目标。

Sediments associated with the Great Dying became our next focus.

youdao

但是灭绝的速度同一个恒定的常数有着相当大的距离。

But the rate of extinction is far from constant.

youdao

他赌关于恐龙灭绝的电影取睹了哭大的成功。

His movie of extinction of dinosaurs was a great success.

youdao

他赌关于恐龙灭绝的电影取睹了哭大的成功。

His movie of extinction of dinosaurs was a great success.

youdao