In the first half of this year, China Yunnan Airline opened air service from Kunming to Mandalay and increased the frequency on the route Kunming- Vientiane.是什么意思_In the first half of this year, China Yunnan Airline opened air service from Kunming to Mandalay and increased the frequency on the route Kunming- Vientiane.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句