that says that 67% of Americans do think that we listen to other countries when we make policy.

调查显示67%的美国人,认为我们听取了别国的意见,继而才制定政策。

普林斯顿公开课 - 国际座谈会课程节选

There is no way that you could irradiate a crystal of nickel with a single beam of x-rays and get that circular ring pattern if the electron beam were behaving as a particle beam only.

没有什么其他的途径,可以让镍晶体发射,单束X光来,继而得到环状图案,如果电子束,是以粒子束形式出现的。

麻省理工公开课 - 固态化学导论课程节选