翻译一个句子，很简单~~

Imagine if one day mankind will be really totally destroyed the environment

Imagine some day when human beings really destroyed the environment completely ...

let'sjust imagine it .if the environment is almost damaged by the human one day.

Imagines, if had a beauty class really completely to destroy the environment.

Imagine if the environment was totally destroyed by mankind one day
这是将来时的虚拟语气

Imagine if the environment was totally destroyed by mankind one day
这是将来时的虚拟语气
我是一名英语老师,请放心使用