Bishops at this time,especially of major cities, would sometimes send around what we call a paschal letter, an Easter letter. In which they'd give instructions or different kinds of things to their churches.

当时的主教，特别是主要城市的主教，会发出所谓的复活节书信，信里写着给其他教会的指示,或者其他事情。

耶鲁公开课 - 新约课程节选

So if you were wanting a pretty precise number on how many calories are in a food, you'd send it to a lab.

所以如果想要一个精确的,食物所含卡路里的数值,就把食物送到实验室

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选