What I cannot do in a park is littering, as it will mess up our environment.
我不能再公园乱丢垃圾，因为那样会搞乱我们的环境。
As we all understand, inorganic materials cannot be decomposed by organism in natural ambiance, littering them randomly can pollute our environment.
我们知道，无机垃圾不会自然分解，因而会污染环境。
As we all understand, inorganic materials cannot be decomposed by organism in natural ambiance, littering them randomly can pollute our environment.
我们知道，无机垃圾不会自然分解，因而会污染环境。
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