GRB 041219 A发生在2004年12月19日，一发生就被认为在亮度上是GRBs中占前1%的。

GRB 041219a took place on 19 December 2004 and was immediately recognised as being in the top 1% of GRBs for brightness.

youdao

即使只考虑教育质量和声誉排名占前25%的学校，那也有750座学校可供选择，何苦只盯住排名最靠前的那区区0.006%不放呢？

Even taking the top 25% in terms of quality rankings and reputation means a pool of 750 excellent schools to choose from. So why focus so much on the top 0.006%?

youdao

英国大学“罗素联盟”统计了收入水平占前20%的毕业生的缴纳金额后得出，他们每年可能要支付高达1.6万英镑的毕业税，这要比交学费贵得多。

But the Russell Group of top universities calculates that graduates in the upper 20 percent of earners could end up paying at least 16, 000 pounds a year–far more than the cost of their education.

youdao

These sorts of questions will occupy us for roughly the first half of the semester.

这些问题将会大约占到,这学期的前一半时间。

耶鲁公开课 - 死亡课程节选