We have carbon 12. I will even leave off the 6 because we already know it is carbon.

我们有碳12，我们将6省去6,因为我们已经知道它是碳了。

麻省理工公开课 - 固态化学导论课程节选

Sample test question: would you ever leave 6 children under the age of 12 unattended?

FORBES: Confessions of the Best Nanny in the World

Ronan O'Gara kicked two first-half penalties for Munster, while Bruce Reihana converted a Saints penalty to leave it 6-3 at the break.

BBC: Munster 12-9 Northampton

According to university surveys which monitor what graduates are doing up to six months after they leave, 6, 000 failed to find a graduate-level job.

BBC: University graduates in job struggle