The most importent problem of all the worldwide problems we are face to is the incresing press of populatian to the soil and the soil resource.

 
  • 我們現在面臨的所有世界性問(wèn)題中最重要的問(wèn)題就是人口對土地和土地資源的壓力正在迅速增長(cháng)。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan