Based on the situations of Qinghai Lake area, the influential factors of life cycle in Qinghai Lake tourist district were analyzed and some ways that could prolonge the life cycle of Qinghai Lake tourist area were proposed.是什么意思_Based on the situations of Qinghai Lake area, the influential factors of life cycle in Qinghai Lake tourist district were analyzed and some ways that could prolonge the life cycle of Qinghai Lake tourist area were proposed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句