英语作文：一个小女孩卖废品用买来的钱，来买东西的钱去买文具送给山区的小朋友100词左右

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Cars bring the human merits,their side-effects gradually e to the surface.firstly,to run a car need a lot of oil,which is getting less and less.the increasing number of cars contribute the lacking of energy.secondlly,as more and more cars are used,the traffic ecpecially in big cities is getting heaver and heavier,which lead to the serious social problem--traffic jam.in addition,the inceasing numbers of cars ,which excaust sent a huge quantities of carbon monoxide into atmosphere.it make the air of cities unbreathabe,it strip people contact with frensh air.therefore, new energy should be explored to replace the oil so that our envionmental pollution can be avioded .and the strick law should be issued to keep the numbers of cars under control.thus,our heavier traffic can be solluted!