Something that is one of a kind and like no other thing is called unique.

VOA: special.2010.04.18

Now, one of the things the Greeks believed, as we discover from a poem written by one of their major poets, is something so far as I know unique to the Greeks.

在希腊的一位大诗人的一首诗中,我们发现了他们所信奉的一件事情,据我所知,这一点是希腊所特有的

耶鲁公开课 - 古希腊历史简介课程节选

When someone invented the airplane, before you knew it every country had an airplane because there was a best practice, there was a best technology and it was not unique to any one country.

有人发明了飞机,不知不觉,每个国家都有飞机了,因为这些最佳的设计,这些最好的技术,并不是一个国家所独有的

耶鲁公开课 - 金融市场课程节选