It would have been in use centuries ago.

它在几个世纪前就被使用了。

The tool has been in use since November.

该工具自11月以来一直在使用。

It would be in use for about 2,000 years.

这将是使用了约2000年。

It's been in use for almost 40 years now.

到现在，它已经服役近四十年了。

It said the technique has been in use since February.

该公司表示，这项技术自2月份以来一直在使用。

" Eleven inches, phoenix-feather core, been in use four years. That correct? "

“十一英寸，杖芯是凤凰羽毛，用了四年。对吗？”

Lengths of bone fashioned into flutes were in use 40,000 years ago.

人类40000年前就开始使用骨头制成的笛子。

The future, Kutch says, is in using the internet for leadership development.

卡奇说，“未来是利用互联网发展领导力。

The treatment is safe and effective, and has been in use since the 1960s.

这种治疗是安全有效的，自1960年代就开始使用。

And finally, the fourth method of reading is in fact, audio books using Audible.

最后，第四种阅读方法，实际上是用 Audible 听有声读物。

Over 21,000 aircraft are in use; a new plane is delivered every five hours.

正在投入使用的飞机超过2.1万架；每5小时就有一架新飞机交付。

It had been in use for more than 100 years, but it was wrong.

这个气压值的使用已经超过了100年，但它是错误的。

Ozempic has been in use for about six years to treat type 2 diabetes.

Ozempic已经用于治疗2型糖尿病大约六年了。

Brass pins have been in use in Great Britain for about four hundred years.

黄铜大头针已经在英国用了大约400年。

There's an incredible value to this but the value is in using it up.

这款粉笔非常珍贵，但它的价值在于用完。

By 1882 it was in use across Europe and had reached North America by 1916.

到 1882 年，它在整个欧洲被使用，并在 1916 年传至北美。

Writers on the website Crocodilian.com claim that this myth was in use by the 1200s.

crocodilian。com网站上的作者称这个神话在12世纪时就已经开始流传了。

The businesses will seek batteries that have been in use for eight to 10 years.

这些企业将寻求已经使用了8到10年的电池。

The procedure is called cervical cerclage. It's been in use for more than 20 years.

手术叫做宫颈环扎术，已经有二十多年的历史了。

How about some interesting facts – like approximately how many words are in use in the English language?

说些有趣的事实，怎么样？比如英语中大约有多少个单词在使用？