服务综合集合的开发总是一个迭代过程，反复经过规格、原型和测试周期。

The development of a complex set of services is always going to be an iterative process, with repeated cycles of specification, prototyping, and testing.

youdao

我们也发现我们需要在迭代中期进行检验会议，这 样我们可以问这个问题“在这个反复中我们还需要做多少的工作？ 我们将全部做完么？”

We also found that we needed a mid-iteration checkpoint meeting so we could ask the question, "How much more work have we got to do for this iteration and are we going to do it all?"

youdao

我们可以简单的将其设置为一个比较低的值，这就意味着当我们迭代该集合时，数据库将反复查询以获得数据。

We can be lazy and set this to a low value, which means that the database must be repeatedly queried to get data as we iterate over the collection.

youdao

N But it's definitely not one and in fact it wasn't N in the case of Selection Sort because remember the algorithm we implemented on stage last week had me going back and forth across the stage selecting on iteration, the smallest person I can find, the smallest number and then putting them into place.

但在选择排序中，肯定不会是1，也不是,注意，上周我们在这儿,实现的算法中，反复地,迭代进行选择，选出最小的数,然后将其放在合适的位置。

哈佛公开课 - 计算机科学课程节选