Orchids are among the most common plant groups in the world.

VOA: special.2010.04.06

So how are we to account for the diversification of languages, the spread of different ethnic linguistic groups throughout the lands of the earth if we all come from one common creative moment, one common ancestor?

所以，如果我们都起源于同一个时刻，来源于,同一个祖先，那又要怎样解释语言的多样性，怎样解释,使用不同语言的族群遍布地球上的所有土地,这一现象呢？

耶鲁公开课 - 旧约导论课程节选

Most analysts view it more as a movement of various local groups with the common aim of imposing Islamic-based rule.

VOA: standard.2009.03.11

You have a huge grouping of consumer data, so you can micro-target messages to common groups, finding pleasure points and anger points on issues.

NEWYORKER: On the Bus

Smoking - the leading cause of avoidable deaths - is now twice as common among groups in lower socio-economic groups.

BBC: Why are we so unhealthy?

By providing them with a unique and targeted place on the Internet, a community-based TLD presents a truly powerful platform for common interest groups to come together and promote their causes.

FORBES: What New Top-Level Web Domains Will Succeeed?