噢，也许是在两万年以前开的。

Oh maybe 20,000 years ago.

youdao

两万年以前，地球上到处都覆盖着冰川，无论何处的动物都在四处逃窜，躲避着新的冰河世纪的冲击。

Twenty thousand years ago, the earth covered with glaciers everywhere, regardless of where the animals are on the run, to avoid the impact of the new ice age.

youdao

两万年以前，地球上到处都覆盖着冰川，无论何处的动物都在四处逃窜，躲避着新的冰河世纪的冲击。

Twenty thousand years ago, the earth covered with glaciers everywhere, regardless of where the animals are on the run, to avoid the impact of the new ice age.

youdao