上机比他们想象的的难多了，所以刚开始的一段时间，他们不得不多次在电话里面请教他们的孩子，一段时间以后，他们基本能自如地操作电脑了。
It was much harder than they'd thought, so at first, they had to consult their children on the phone a lot, but some time later they were Ok.
在开始设计之前，建筑师在客户原来的房子待了一段时间，观察他们的生活，研究他们的习惯。
Prior to beginning his design, the architect spent some time in the client's old home, observing their life and studying their habits.
它在青年时期达到顶峰，在一段时间内趋于平稳，然后普遍会开始随着年龄的增长而缓慢下降。
It peaks in young adulthood, levels out for a period of time, and then generally starts to slowly decline as we age.
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