Virtually every week since the 1979 Iranian Revolution, Friday prayers in Tehran have been punctuated with the ritual cry of "Marg bar Amerika" Death to America.

VOA: standard.2009.07.02

So it's not a continuum of energy that we can have, it's only these punctuated points of energy that are possible.

我们得到的不是一个连续的能量，而是一些分立的可能的能量值。

麻省理工公开课 - 化学原理课程节选

Any frequency can't have an energy, you have to -- you don't have a continuum of frequencies that are of a certain energy, it's actually punctuated into these packets that are called photons.

任何频率不能有个能量,你必须要-对某一个能量上,你不会有连续的频率,光子实际上分立的存在。

麻省理工公开课 - 化学原理课程节选