英語(yǔ)翻譯
No air means death.Although we cannot see it ,there is air around us.So air is everywhere and it gives l_______to every living thing.Without it we cannot live.Bad air makes people i_______.We must have fresh air to keep us in good h______.
In the city there are a great many people and there are too many cars running on the roads.The gas spread out is full of poison .Every day we b_______it in and out.This makes us feel sick.Therefore people should go out of door as much as they can.
Besides so many cars,there are many factories,too.From the chimneys of these factories,we get the smoke usually in black or gray c_______.This kind of smoke ,when it mixes the air ,is dangerous to out health.It is because smoke contains many small poisonous soils and gases .So in o________to keep us healthy we have to go out to the countryside to breathe more fresh air .Or we can go up hills to get more fresh air .
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