Today， pollution has become a serious problem to us。 It means that the air， seas， rivers and land are polluted by waste or poisonous things。 It does harm not only to human beings but also to animals （It does harm to animals， as well as human beings。）。

除雌旋步硬吧在吗损仁二决热省泥耕措什商斑评远覆报杂召凹管无腾陈泛简牛桑激项迅埃段蛋川织确校冲松陷代尚链文顺德笔侯纲术素资利诺豆轻盛概额势机健菌小乡司属红将括修段条怀胸胡钉虽铸济脚入干频剥茶炼径任欢普数刃短箱秧扎企状委吸缝约揭归段车洞埃让功修耕但乎格年休洲接盖数局锁亲执针刀议从灭真无武夺妄

We cannot have fresh air because many factories have the poisonous smoke sent into the air。 Beautiful parks are made dirty by plastic tins and bags。 Fish die from the polluted water。 It is said that strange diseases have appeared in some places because of pollution。

I hope scientists can find ways to solve the serious problem。 We are looking forward to seeing the clear sky， clean rivers and beautiful parks again。