As many people know , our mere planet ---- Earth is becoming weaker and weaker , as a tiny part of her , I think we have to do something to stop her from sinking . for example , we can turn off the lights when we leave , or close the tap when brushing our teeth , and even we can stop dropping trash casually and etc. In fact , to save the Earth is not that hard , maybe we just need to do some tiny things . No matter how small it is , we just need to act ! So , are you ready to join the combat for our Mother earth ? 不好的地方望改进!同问。。。
