The population in the semi fixed sand dunes had the most developed root systems, followed by the population in the fixed sand dunes, and that in the inter dunes lowland was the last.是什么意思_The population in the semi fixed sand dunes had the most developed root systems, followed by the population in the fixed sand dunes, and that in the inter dunes lowland was the last.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句