n.多余;過剩;奢侈品
This book has a superfluity of introduction. 此本書中有多余的介紹。
The teacher pruned the student's article of its superfluities. 老師刪去這個學生文章中的多余內容。
There is also a superfluity of stop signals. 此外,停止符的數量也有冗余。