In short,let's do everything we can to make the Earth a cleaner place.

In short,let's do everything we can to make the Earth a cleaner place.
In short,let's do everything we can to make the Earth a cleaner place.

In short,let's do everything we can to make the Earth a cleaner place.
简短的说,让我们尽一切努力来让地球成为更加洁净的地方吧!