Present situation of the ecological environment and the countermeasures for reconstruction of the ecological environment of xerothermic and droughty river valley areas in the reach of the Yangtze River是什麼意思_Present situation of the ecological environment and the countermeasures for reconstruction of the ecological environment of xerothermic and droughty river valley areas in the reach of the Yangtze River在線翻譯_英語_讀音_用法_例句