A Case Studying of the Benefit and Technology of Reforesting Formerly Cultivated Land in the Sandy Bare Land of the Hexi Corridor是什么意思_A Case Studying of the Benefit and Technology of Reforesting Formerly Cultivated Land in the Sandy Bare Land of the Hexi Corridor在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句