Regarding eternal happiness, I wonder whether it has existed on the earth.

至于永恒的幸福，我怀疑世上是否真正有过。

youdao

The Naschmarkt is Vienna's most popular market, and it has existed since the 16th century.

纳旭市场是维也纳最为热闹的集市，早在16世纪就已经存在了。

youdao

Role model is not a new idea, it has existed for a long time.

角色模型并不是一个新概念，它已经存在很长时间了。

youdao

We all know that. It has never existed.

我们都知道它从不曾存在。

耶鲁公开课 - 政治哲学导论课程节选

And it has existed already in other -- through other means, through other communications.

WHITEHOUSE: Press Briefing

It has existed as long as there has been a consumer electronics industry.

FORBES: Solving The Product Return Problem In Consumer Gizmos

It has existed in some businesses (call centers, tech support) for years.

FORBES: Virtual Workers Will Disrupt Many Professions