20xx生英語演講稿caringfornature，overpopulation(更新版)
【正文】 has a great effect on the world population。 and the big population is threatening the nature every second。 people visiting each other， arguing and screaming。 when we enter a crowded slum district。 because of the supplies of the nature， we have lived happily for a long time。資料共分享，我們負(fù)責(zé)傳遞知識(shí)。 today， people have discovered that the nature around is getting worse and worse。 the streets seem alive with people。 people leading animals。 people in rich countries make the heaviest demands on the worlds resources， its food， fuel and land， and cause the most pollution。 economic opportunities and the quality of life of future generations are also put at
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