Telescopes with small (sometimes called "fast") focal ratios do, however, produce brighter images of extended objects on film, and thus require shorter exposure times.
小(有时候称“快”)焦比的望远镜确实能够在底片上呈现出更亮的图像，因此需要的曝光时间可以更短。
Sometimes the shorter distance is actually slower.
有时候短的距离更慢。
Yet he sometimes feels caught between the two, as when he texts with his younger brothers, ages 12 and 19, who tend to send even shorter, faster messages.
但他有时觉无所适从，因为当他跟12岁和19岁的两个弟弟发短信时，他们发得甚至更短更快。
With shorter times the alarm sometimes cuts my sleep too short, and I don't feel fully refreshed.
让我有足够的时间入睡，做一个梦并且有时会自己醒过来。
Sometimes the examples are sillier. Professor Anna Ahn published a paper recently showing that people with shorter heels have larger calves.
有时候例子是类似的，安娜·安博士最近发文表明，穿着低跟鞋的人小腿显得比较粗。
Farsightedness is the opposite, in a way: A shorter-than-average eyeball or too-flat cornea focuses light behind the retina instead of on it, making near vision and sometimes distant vision blurry.
远视在某种程度上则相反，是较正常短些的眼球前后径或者太平坦的角膜使光线聚焦于视网膜后而不是之上，这导致近景视觉模糊和有时的远景视觉模糊;
The good news is that these young people, "early adopters of technology, " as the study sometimes refers to them, have developed some strengths to accommodate for their shorter attention spans.
好消息是这项研究提到，那些走在科技前沿的年轻人已经进化出其他能力来弥补较短的注意力时长。
Time-series analysis sometimes errs but usually produces more accurate results when economists apply it to shorter time spans.
时间序列分析有时会出现错误，但是在更短的时间范围内能提供更准确的结果。
And lean on locally grown, which has a shorter transit time, or frozen off-season vegetables, which are flash-frozen within hours of harvesting, sometimes right in the field.
倾向选择当地种的蔬菜，它运输时间短；或者买冷藏的淡季蔬菜，它们通常是在收获后几个小时内就被新鲜冷藏了，有时在田里就直接冷藏。
I sometimes respond to shorter questions or points because they just take less time to respond to than many lists of issues.
我有时候只能回复些较短的问题，因为回复那些大段大段的帖子实在太耗费时间了。
Sometimes, it is found that there is a surplus, and the magistrates proclaim a shorter working day for a time.
有的时候，发觉物资有余，官长便宣布暂时缩减每日工时。
Sometimes, it is found that there is a surplus, and the magistrates proclaim a shorter working day for a time.
有的时候，发觉物资有余，官长便宣布暂时缩减每日工时。
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