All these changes happened over a period of time.
所有这些变化都是在一段时间内发生的。
The Tertiary Period was separated into division of time that were equal in length.
第三纪被划分为等长的时间单位。
Many people say the purpose of the engagement period is to permit enough time to plan the wedding.
许多人说，订婚期的目的是为了腾出足够的时间来策划婚礼。
This crisis might last for a long period of time.
此次危机可能会持续很长一段时间。
She spent a period of time working with people dying of cancer.
她用一段时间帮助即将死于癌症的人们。
The money was lent for an undefined period of time.
这笔钱无限期借出。
The period of engagement is the time between the marriage proposal and the wedding ceremony.
订婚期是指从求婚到举行婚礼之间的这段时间。
A flash mob is a group of people who come together suddenly in a public place, do something unusual for a short period of time, and then quickly break up.
快闪族，是指一群人突然在公共场所聚集，在短时间内做一些不寻常的事情，然后迅速散开。
She should be hospitalized for a period of time.
她得住院治疗一个时期。
This recorded the voltage that each model made over a period of time.
这个仪器记录每一个模型在既定时间段产生的电压。
We define an iteration as a phase, a milestone, or a period of time.
我们将一次迭代定义为一个阶段，一个里程碑，或者一个时间段。
Make a time frame of what you hope to achieve in a specific period of time.
制作一个时间结构关于你希望再怎样一个确切的时间段完成什么。
This period of time is often called duration or interval.
这个时间周期通常被称为持续时间或者时间间隔。
They could also access a musical recording for a similar period of time.
他们也可以获得类似一段时间内的音乐录音。
High potentials through this period of time are very likely to leave.
在这段时间里，巨大的潜力很可能消失。
A seemingly long period of time.
一段似乎很长的时间。
It's the most prolific period of time.
这是最多产的一段时期。
Collect messages for a set period of time.
在固定的时间段收集消息。
Total cost in a period of time
某一时间段内的总成本
Total cost in a given period of time.
给定时间段中的总成本。
So this will play out over a period of time.
所以这要经过一段时间才会出现结果。
Expect to make friendships gradually, over a period of time, not instantly.
友谊是逐渐形成的，要经过一段时间，不要期望速成；
Some would migrate, although probably over a period of time.
有些人会远走他乡，尽管可能需要一段时间。
Was she handling crises during this period of time?
难道她在这段时间里处理过任何危机吗？
Contributors that have proven themselves over an extended period of time can become Committers.
在一段时间后证实了自己的贡献者可以成为委托人。
Climate is the overall combination of all these events over a long period of time.
气候，指的是在一个相对较长的时间内，所有这些事件的结合体。
They now have to retain some specific data for a specified period of time.
他们现在必须在特定时间内保存一些特定的数据。
This allows the implementer to apply this approach efficiently in a short period of time.
这允许实现者在较短的时间内就能够应用这种方法。
Each change was huge and happened over a very short period of time.
每次改变动作都非常大，并且总是在很短的时间内。
Over a sustained period of time you are always going to betray yourself.
持续一段时间以后，你会一直背叛你自己。
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