人们经常在刚开始的阶段就受伤，然后一段时间内不能再进行训练。
Often, people get injured in the first few sessions and then are unable to train again for a while.
大家庭的作用已开始在一段时间内有所减退。
The role of the extended family has been decaying for some time.
最近一段时间，新型潜艇的建造和采购开始密集起来。
Recently, construction and acquisition of new submarines has begun to intensify.
第四节比赛开始一段时间里湖人的进攻陷入停滞。
During the early going of the fourth quarter, the Lakers offense was really struggling.
我们做的动作，一段时间后，我们开始体验到它的结果。
We perform an action, and sometime later we begin to experience its results.
也许，它一开始时是份理想的工作，在一段时间内你也热爱过它。
Maybe it started as your dream job and for a time you loved it.
您的罚款，但一段时间后开始松懈。
在检测开始之前，首先由摄像机对无人环境持续观测一段时间，建立背景的统计模型；
First, it builds the background model by observing the scene without people in it.
在检测开始之前，首先由摄像机对无人环境持续观测一段时间，建立背景的统计模型；
First, it builds the background model by observing the scene without people in it.
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