一段时间

But at one point, four years ago, I had a boyfriend.

但是，四年前的一段时间，我有了一个男朋友。

In fact, at one point, they thought Paul was

事实上，有一段时间，他们以为保罗已经

We see each other at regular intervals.

我们固定隔一段时间见面。

At regular intervals sit down and review your notes so that you can learn and retain the information.

有规律地每隔一段时间就复习一下你的笔记，这样能使你更好地掌握知识。

With a view to keeping a normal sight, most of us have to have their eyes examined at regular intervals.

为了保持正常视力，我们大部分的人都必须每隔一段时间去检查眼睛。

We have grown comfortable for a long time, but it comes at the expense of others happiness.

我们在舒适环境中成长了很长一段时间，但却是以牺牲别人的幸福为代价的。

He at one time reached the level of "master."

有一段时间他达到了大师的级别。

He said, adding business was at its worst since the shop opened 20 years ago.

他还说，这是开店20年来生意最差的一段时间。

Funny thing however, is that after I spent a relatively extended time period listening to those modern music, mainly atonal of course, when I finally got back to the basic core repertoires, take keyboard music for instance, say, Mozart or Schubert's sonatas, I start to appreciate them even more, while those modern stuffs just don't have this advantage.

有趣的是，当我听了相当长一段时间的现代音乐后，当然是那种没腔没调的，当我最终回到基本的核心保留曲目，以弹奏乐为例，如莫扎特或是舒伯特的奏鸣曲，我开始更加欣赏它们了，这些现代作品就是没有这种优势。

SCRUM has been around for a while in object-oriented circles, although I'll confess I'm not too au fait with its history or development.

SCRUM在面向对象的周期中已经存在了一段时间，尽管我要承认我对他的历史和开发也不是很熟悉。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。