[经] international civil aviation organization

guó jì mín yòng háng kōng zǔ zhī ㄍㄨㄛˊ ㄐㄧˋ ㄇㄧㄣˊ ㄩㄥˋ ㄏㄤˊ ㄎㄨㄥ ㄗㄨˇ ㄓ