But beyond what is necessary for these purposes, there will be no invasion, no using of force against or among the people anywhere."

VOA: special.2009.07.30

No. Everybody's been using that, sort of since time immemorial or at least since the sixteenth century.

不，每个人都在用它，这个进程可能可以追溯到太古时期，不过至少16世纪。

耶鲁公开课 - 聆听音乐课程节选

So, for example, when people, and we'll talk about this next class, were looking at different characteristics spectra of different atoms, what they were seeing is that it appeared to be these very discreet lines that were allowed or not allowed for the different atoms to emit, but they had no way to explain this using classical physics.

举个例子，当大家看到,不同原子的特征光谱时,他们看到的是一些分离的线,那可以使不同的原子,发射或不发射出去，但是这些无法用经典物理来解释。

麻省理工公开课 - 化学原理课程节选