我能否一件一件地分别付钱？

Can I pay for each item separately?

《牛津词典》

现在咱们再上楼一件一件地查一遍。

Now let's go up again and go over it piece by piece.

youdao

我开始一件一件地回顾当初添置进来的物品。

So I have begun reviewing what I added to the pile.

youdao

So, all right, we'll try and make this class work as smoothly as we can, allowing for this extra thing.

我会尽量让,课堂顺利地进行下去,还有一件事

耶鲁公开课 - 博弈论课程节选

has directly or indirectly referenced the thing, that you are condensing into a single statement.

直接或间接地表达着一件事情，而你要把这些内容概括成一句话。

It sounds like 课堂 - SpeakingMax英语口语达人

He, in fact, sings and sings louder for it in this late poetry; sings louder, as he puts it, "for every tatter in its mortal dress."

在诗里他高声为其赞颂;,为其高声歌唱，更高声地为每一件破旧衣裳歌唱“

耶鲁公开课 - 现代诗歌课程节选