求翻译：如果我们不采取措施，动物的生存空间将变得越来越小，人类也将无法再地球上存活下去，届时，我们将别无选择，只能搬到其他行星上去是什么意思？

If we do not take measures, the animal's living space will become smaller, human on Earth to survive, then, we will have no choice, only to move to other planets up

If we do not take measures, the animal living space will become more and more small and will no longer be able to survive on earth, at which time we will have no choice but to move to the other planets

If we do not take the measure, animal's existing space will become getting smaller, the humanity will also be unable on the Earth to survive again gets down, we will have at the appointed time no alternative, will only be able to move to other planets to come up

If we don't take measures, animal living space will become increasingly smaller, humans will not be able to survive on the planet, then we will have no choice, only to move to other planets

正在翻译，请等待...