回答数
5
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200
我爱吃土豆儿
We must take action to / reduce polution and protect our health.
三石太保
less pollution
甜甜婉儿
reduce pollution
半调子810
our drinking water is reducing water pollution is quite serious we should protect and reuse water
langlang0802
it,s the best to go to school on foot or by bike.
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