And then, if we have time at the end, we'll introduce one last topic, which is isoelectronic atoms and ions.

最后，如果有时间的话，我们将再介绍最后一个主题：,等电子原子与离子。

麻省理工公开课 - 化学原理课程节选

Now let's contrast that with what happens in the second movement of Beethoven's Fifth Symphony where we have a lyrical, long, flowing theme. Okay?

现在我们拿它来对比下,贝多芬第五交响曲的第二乐章,这部分有长时间抒情的流畅主题,开始

耶鲁公开课 - 聆听音乐课程节选

That leads to our next topic that I want to pursue for the remainder of the class, the reform of poetry and the arts.

这导入我们下一个主题,而我想要利用今天剩下的时间，寻找诗学与艺术的改革。

耶鲁公开课 - 政治哲学导论课程节选

I don't even think they are in chronological order by topic.

我甚至都没想,它们是按照主题的时间顺序排列的。

麻省理工公开课 - 固态化学导论课程节选

It's just this double bind of vocation that's the subject of Sonnet VII, "How soon hath Time." That's the sonnet in which Milton laments the fact that he has turned twenty-three years old and has yet produced nothing that would indicate a shining poetic future.

第七篇十四行诗的主题就是这种职业窘境，“时间过得多快啊，“弥尔顿在这首诗里表达了,对自己都快23岁却没创作出什么,可以显示出他卓越天赋的诗的哀伤。

耶鲁公开课 - 弥尔顿课程节选