急,想办法think of a plan to make our city cleaner a
急,想办法think of a plan to make our city cleaner and greener.
人气:203 ℃ 时间:2019-09-09 11:34:05
解答
when you go out try to use the vehicles such as bus and metro as they have less tailpipe emission compare to private car.another way is plant trees around buildings they can purify the air,on the other hand it can avoid global warming occur.满意请采纳
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