从前的我,单纯地望着湛蓝如洗的天空,“天苍苍,野茫茫,风吹草低见牛羊”,念着并不完全会意的童谣。以为地球不沾污痕,全身披着纯粹、清新的绿色。后来,老师告诉我地球是颗水蓝色的星球,海洋面积占全球面积的71﹪。并且地球在变,“天苍苍,野茫茫,风吹草低见牛羊”的塞上风光早已 In the past, I simply looked at the clear blue sky. “The sky is dark, the wild is vast and the wind blew away.” I read the nursery rhyme that was not completely intended. Think that the earth is not stained stains, the whole body in pure, fresh green. Later, the teacher told me that the Earth is a blue water planet, the ocean area accounts for 71% of the global area. And the earth is changing, “the sky is gray, the wild boundless, the wind blew the sheep and sheep,” the plug has long been