短语词组短語tributary unit 支路單元;附屬單元tributary glacier 支冰川;冰川支流;冰川支流支冰川Tributary board 支路板Tributary Zone 支流地帶tributary signals 支路信號tributary river 支流tributary inflow 支流流入水量tributary waters 支流水躰tributary modem 從屬調制解調器 返回 tributary