early 15c. (earlier superflue, late 14c.), from Latin superfluus "unnecessary," literally "overflowing, running over," from superfluere "to overflow," from super "over" (see super-) + fluere "to flow" (see fluent). Related: Superfluously; superfluousness.
雙語例句
1. I rid myself of many superfluous belongings and habits that bothered me.
我把很多無用的物品都丟掉了，并且改掉了一些讓我煩心的習慣。
來自柯林斯例句
2. She gave him a look that made words superfluous.
她看了他一眼，這已表明一切，無須多言了。
來自《權威詞典》
3. He had already been told, so our comments were superfluous.
早就有人同他說過, 所以我們的意見是多余的.
來自《簡明英漢詞典》
4. It would be superfluous to dwell on the matter any more.
不待贅言.
來自《現代漢英綜合大詞典》
5. She fined away superfluous matter in the design.