De Broglie, 1924, in his PhD thesis says if an electron has wavelike properties this would be its wavelength.

德布罗意，1924年在他的博士毕业论文中说到,如果一个电子有类似波的性质,这就是它的波长。

麻省理工公开课 - 固态化学导论课程节选

In fact, I am the only, I'm the only person from America, out of everybody in the accounting Ph.D. program.

事实上，在所有会计博士生中，我是唯一的美国人。

如果是在考虑留学 - SpeakingMax英语口语达人

He is also a PhD candidate in Economics at Yale and he's been doing research on financial markets in developing countries.

他正在耶鲁攻读经济学博士学位,他目前正在研究,发展中国家的金融市场

耶鲁公开课 - 金融市场课程节选

The difficulty of the poem lies to a great degree, I think, in something that Dr. Johnson had noted in his attack or in his criticism on Lycidas that I mentioned on Monday.

诗歌本身的难点很大程度上，在于约翰逊博士在他对利西达斯的,抨击中提到的一些点。

耶鲁公开课 - 弥尔顿课程节选

She is a PhD candidate in the department of music, just passed her qualifying exam with flying colors, so here she is to demonstrate the bassoon for us, lowest member of the woodwind family.

她是音乐学院的在读博士,刚刚以出色的成绩通过资格考试,她马上要为我们演奏巴松管,木管乐器中声音最低沉的乐器

耶鲁公开课 - 聆听音乐课程节选

I am delighted to welcome Dr. Eboo Patel to be with us today.

很高兴邀请到Eboo，Patel博士,参与到今天的节目中。

普林斯顿公开课 - 人性课程节选