"I am sure there will be some compromises but at the end of the day, I would expect that it would look very much like the Senate version,"

VOA: standard.2009.12.27

And you would expect that that would be a much stabler compound because, instead of plus one attracting plus one, now you have plus two attracting minus two.

可以预见,这将会是更稳定的化合物，因为不再是一价正离子吸引一价负离子，而是二价正离子吸引二价负离子。

麻省理工公开课 - 固态化学导论课程节选

Now you keep on trying and because the reinforcement is intermittent you don't expect it as much and so your behavior will persist across often a huge amount of time.

你会不停的尝试,因为此时的强化是间隔强化,你并不会抱有很高的期望,因此，你的行为,通常会持续相当长的一段时间。

耶鲁公开课 - 心理学导论课程节选