Vientiane (or translation Yongzhen on the north bank of the middle Mekong River是什么意思_Vientiane (or translation Yongzhen on the north bank of the middle Mekong River怎么读_Vientiane (or translation Yongzhen on the north bank of the middle Mekong River的反义词_Vientiane (or translation Yongzhen on the north bank of the middle Mekong River的同义词_在线翻译_英译汉_英汉词典