we live in the same place__earth,we take it as the our mother.we should do our best to protect it and make it more and more beautiful,not only for the earth,but also for ourselves! 怎么也得有点奖励吧,我也是要参加口语大赛的哦,
The Earth is the third planet from the Sun in our Solar System. It is the planet we evolved on and the only planet in our Solar System that is known to support life. The Earth is about 7,926 m...