勐海县měng hǎi xiàn释义Menghai, a county in Xishuangbanna Dai Autonomous Prefecture 西雙版納傣族自治州|西双版纳傣族自治州[Xi1 shuang1 ban3 na4 Dai3 zu2 Zi4 zhi4 zhou1], Yunnan单字详解勐meng海hai县xian