Difference in time zone, jet lag, lack of morning coffee - are frequently cited reasons as to why you're especially grouchy.

时区的不同、时差、或者没有早茶，这些都是经常会引起你特别不高兴的原因。

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The difference in time scale between the few hours his world has evolved and the billions of years wild nature has evolved is only part of the problem.

他的世界几个小时的进化，蛮荒大自然的数十亿年的进化，其时间尺度上的差别也只是问题的一部分。

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However, after the experiment described above the difference in time between the two clocks was less than a billionth of a second, which is why very accurate clocks were needed.

但是经过上述实验后，两个钟表的时间差距不到十亿分之一秒，所以需要用两个非常精准的钟表。

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But one difference this time is that many newspaper companies are heavily in debt from buying other newspapers.

VOA: special.2009.03.21

In fact, I'm going to use only two dimensions for most of the time because the difference between one dimension and two is very great.

实际上,大多数时候我只考虑二维的情况,因为一维和二维的差别很大

耶鲁公开课 - 基础物理课程节选

"Our study showed for the first time a clear difference between oxygen and air in the treatment of acute cluster headache.

VOA: standard.2009.12.17

To give you an idea how difficult it is to get federal government land permitting approval versus states, consider the difference in time schedules.

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The first is the difference in time zones.

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If one would look at the amount of time put in by doctors, then one will see a huge difference in the time worked by men and by women.

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