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70 YEARS ON | 美丽中国

Trees help us keep the sand away

作者:TEENS
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防治荒漠化:把千年沙漠变成绿洲。

Have you ever seen a sandstorm (沙尘暴)? They usually happen in deserts (沙漠) when winds blow (吹) lots of sand into the air. Sandstorms can do great harm to plants, people, and buildings.
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