- 問題詳情:MostofthesandstormsthathadsweptChinalastyearcamefromforeignland,aChineseofficialinchargeofdesertification(荒漠化)controlsaidonMonday.Andtheinvasions(入侵)couldpartlyexplainthefrequentsandstormsinthecountryinrecentyearsdespiteitsachievementsindes...
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