"so we wanted to highlight our concerns by promoting a positive image of Islam which is rarely seen in the mainstream."

VOA: standard.2010.07.19

I almost said 'next week' but we rarely plan that close to the event.

我这里说“下星期”,但其实很少在那么短的时间内才计划。

普林斯顿公开课 - 国际座谈会课程节选

we very rarely would see these core electrons actually being involved in any type of a reaction.

我们极少见到芯电子,会参与任何类型的反应。

麻省理工公开课 - 化学原理课程节选