综合业务数字网 zōnghéyèwùshùzìwǎng ISDN Origin Definitions Defs Strokes Stroke Words Sentences Sents 综合 綜合 zōnghé noun comprehensive comprehensive; composite; mixed; including different types or qualities of things into a general whole业务 業務 yèwù noun business professional work; business operations or services数字网 數字網 shùzìwǎng digital network