Interestingly, REM sleep increases in duration throughout the night.

有趣的是，一晚的快速眼动睡眠时间会增加。

That pain was longer in duration but not so intense.

那时的痛持续时间更久，但剧烈程度还差一点。

It's about four thousandths of a second in duration.

其持续时间约为千分之四秒。

All real meaning accrues in duration.

所有真正的意义都在时间中累积。

Whale songs are extremely variable in duration, and whales can repeat them over and over.

鲸歌的持续时间变化很大，鲸鱼可以一遍又一遍地重复它们。

The orientation program will be one week in duration, with activities and events scheduled each day.

迎新活动将持续一周， 每天安排活动和事件。

Thou hast made me comprehend the love divine, that sure love, sure in strength and in duration, that knows no doubt or jealousy.

你使我领悟了神圣的爱， 那确定的爱， 在力量和持续时间上都是确定的， 它知道没有怀疑或嫉妒。

Simple tics are relatively short in duration, lasting milliseconds, and can include behaviors like eye blinks, which would be motor, or throat clearing, which would be verbal.

简单抽动过程较短，仅数毫秒：可以是动作性抽动，如眨眼睛，也可以是发声性抽动，如清嗓子。

As a rule of thumb, a pathological Q wave tends to be deeper than two small squares and greater than one small square in duration.

根据经验法则，病理性Q波的深度往往大于两个小方格，持续时间则大于一个小方格。

This war of the tribes of the valley lands was of years in duration; men fought, and women mourned, and children wept, as all have done since time began.

这场山谷地区部落的战争持续了数年之久。男人们战斗，女人们哀悼，孩子们哭泣，自古以来所有人都在这样做。

They're learning that a long vowel can actually be longer in duration, as opposed to different in quality, which is what our long vowels do;they're actually the same length.

他们正在学习长元音实际上可以更长的持续时间，而不是质量不同， 这就是我们的长元音所做的; 它们实际上是相同的长度。

The present perfect simple looks at completed actions, and often counts how many or how much, whereas, the present perfect continuous tends to see one action in duration, and cares about how long.

现在完成时所描述的是已经完成的动作，并且经常强调多少，然而，现在完成进行时趋向于描述一个持续的动作，通常会强调时间长短。