Practices and Deliberation on Supervising Construction of Soil and Water Conservation-based Eco-environment Project-As a Sample at Xihe Demonstration Area in Yellow River Valley是什麼意思_Practices and Deliberation on Supervising Construction of Soil and Water Conservation-based Eco-environment Project-As a Sample at Xihe Demonstration Area in Yellow River Valley在線翻譯_英語_讀音_用法_例句