作文How to Protect Our Earth、六年级,60字左右.、这句话什么意思都不知道.、请帮忙写一篇

题目意思：怎样我们的地球Nowadays,our eath is becoming more worse and worse,so we try our best to protect our earth.First of all,we should not throw rubbish everywhere.Second,we try not to use disposab...