1·A voice shouted, superfluously: "Open the door!"
一个声音大喊：“快开门！”
2·Superfluously, he added his silly comments to the discussion.
他多此一举地把自己愚蠢的观点加到了讨论之中。
3·In my callback function I also add, somewhat superfluously, id attributes to my elements.
在回调函数中我也有些多余地为元素增加了id属性。