[经] central bank of central banks
zhōng yāng yín háng de zhōng yāng yín háng ㄓㄨㄥ ㄧㄤ ㄧㄣˊ ㄏㄤˊ ㄉㄜ˙ ㄓㄨㄥ ㄧㄤ ㄧㄣˊ ㄏㄤˊ