about protect Beijing's environmenti breathe in some poisonous element from bad air when I'm walking to school in the street. sometimes maybe we can't realized how bad the weather and what bad air in ...要120字左右的about protect Beijing's environmenti breathe in some poisonous element from bad air when I'm walking to school in the street. sometimes maybe we can't realized how bad the weather and what bad air in our life.I think that Chinese have too much cars in their families and bad gas out of their cars.another problem from some factory, they make some bad smog from chimney and our fresh air become less and less.How to protect our environment is a serious problem to us, First, we should not to litter the rubbish anymore, and walking or riding bike instead of driving the car. If we just to do it, it‘ll not longer before the sky become more blue and our air become more fresh.