[in sing]an unnecessarily or excessively large amount or number of something 多余,过量,过多 a superfluity of unoccupied time. 过多的空闲时间。 ■an unnecessary thing 非必需品,多余物 they thought the garrison a superfluity. 他们认为守备部队是多余的。 ■[mass noun]the state of being superfluous 多余 footservants who had nothing to do but to display their own superfluity. 无事可做,显得多余的跑腿仆人。
语源
late Middle English: from Old French superfluite, from late Latin superfluitas, from Latin superfluus 'running over' (see superfluous)