Especially the desertification of northern China (sandy desertification) and the overwhelming majority of its size and rapid development concern.

 
  • 尤其是我國北方的沙漠化(砂質(zhì)荒漠化)以其面積廣大和發(fā)展迅速而引人關(guān)注。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan