The average length of a story keeps falling.

而每则新闻的平均时长也在不断缩短。

It says the average length of unemployment increased sharply in developed economies.

称发达国家的平均失业时间大幅上升。

From the 1950s through the 60s the average length of number one hit songs averaged about 2.5 to 3.5 minutes.

从20世纪50年代到60年代，排名第一的热门歌曲平均时长约为2.5到3.5分钟。

Preliminary tests found Scott's telomeres significantly increased in average length while in orbit, but shortened within 48 hours after landing.

初步测试发现，在轨道上，斯科特的端粒平均长度显著增加，但在着陆后的48小时内缩短了。

What’s the average length of stay in hospital?

【length】平均的住院时间是多长？

The average length of such scrolls was three metres or so; both hands were needed to cope with them.

这种卷轴的平均长度是三米左右；需要两只手来应付他们。

With enough nutrients, fronds of giant kelp, which grow to an average length of about 30 metres, can elongate by more than 50cm a day.

有了足够的营养，这些平均长度约为30米的巨型海草叶，每天可以生长50多厘米。

The average length of an American male's hand from the tip of the middle finger down to the base of the wrist is 18.9 centimeters.

美国男性的手从中指指尖到手腕根部的平均长度是 18.9 厘米。

This is why if you have had a credit card for several years, and you close one, that's gonna bring down the average credit length.

这就是为什么如果你有一张信用卡几年了，你取消了一张，这会降低平均信用期限。

The average person goes through three to five of these events in the course of their lives, their average length five years.

一般人一生中会经历三到五次这样的事件，平均时长为五年。

An average commercial runway at a regular airport is 1,800 meters in length meaning that Tenzing Hillary's runway is less than one-third of the average length.

普通机场商业跑道的平均长度是 1800 米，这意味着丹增-希拉里机场的跑道还不到平均长度的三分之一。

Again, it's hard to define the threshold for everyone but three weeks is said to be the average length of time a human can go without it.

同样，很难为每个人定义阈值，但据说三周是人类可以不使用它的平均时间长度。