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

OK. One of the other things you're going to see is that some of the operators have odd meanings.

好，你们会学会的另外一件事情,是一些操作符,有很奇怪的含义。

麻省理工公开课 - 计算机科学及编程导论课程节选

She starts at the beginning of her day and goes through task after task, chore after chore, project after project

她从一天的开始说起，从一个任务说到另一个任务，从一件杂活说到另一件杂活，从一个项目说到另一个项目。

It sounds like 课堂 - SpeakingMax英语口语达人

Now I got one just simple thing, and I simply have isolated that module inside of that function.What about abstraction?

而现在我只要做一件简单的事，那就是我只需把这个模块,加到函数中去？

麻省理工公开课 - 计算机科学及编程导论课程节选