在这崭新的时代——21世纪,城市里处处车水马龙、金碧辉煌,人人用着手机、电脑那些便利的科技,大家都生活在幸福之中。但日新月异的世界建立了一座座大工厂,竖起了一个个大烟囱,我们的生活环境水平却在直线下降……还记得有一次,我望着小区前满河的污水发呆。这时,奶奶走了过来,深情地对我说,在他们那一辈时,虽然没有高耸入云的摩天大厦,也没有惊人的科技,但是,有那满天的繁星,那参天的大树,那一望无际的草原,那一碧如洗的蓝天,那清澈见 In this brand new era - in the 21st century, everyone in the city is full of happiness and magnificent, with all the convenient technologies of mobile phones and computers. However, with a rapidly changing world, a large factory was built and large chimneys were erected. The level of our living environment was plummeting ... I remember once, I was looking at the trash in front of Manhe River in the district. At this time, my grandmother came up and said to me affectionately that although there was no towering skyscraper or amazing technology in their generation, there was a sky full of stars and towering trees That endless grassland, that blue sky, that clear see