And these rings are indicative of the crystal structure of nickel and can be explained only by invoking wavelike properties of light.

这些光圈,表明了了镍的晶体结构,而且只能通过,光线中波的特征来解释。

麻省理工公开课 - 固态化学导论课程节选

You're not responsible for these paintings, but we'll illustrate ways in which the Dutch Republic, and their social structure, and what they emphasized, and who they thought they were was very different than, for example, la belle France.

你不必深究这些画作,不过我们将从荷兰的民主制度,社会结构,和他们自己所强调的特征上解释这些画的含义,他们认为自己和其他人很不一样,例如,和美丽的法国之间的不同

耶鲁公开课 - 欧洲文明课程节选