一篇是关于三孩政策，另一篇是关于火星探测。

One is about the Three-Child Policy, the other is about Mars exploration.

youdao

“Serendipity”这个词，是在1854年由霍勒斯·沃波尔在一封信中创造的，这个词源于一个关于三个王子的故事，他们“总是意外地发现那些他们无意寻找的东西”。

The word "serendipity" was coined by Horace Walpole in an 1854 letter, from a tale of three princes who "were always making discoveries, by accident, of things they were not in search of".

youdao

她接着说，“许多关于三氯生对人类和环境安全的研究已经开展多年。”

She added: 'Much research on human and environmental safety has been done on triclosan over the years.

youdao

We have a Sumerian story about the third millennium BCE, going back 3000--third millennium, 3000 BCE.

苏美尔人有一个关于公元前三千年，一直往回3000年，公元前。

耶鲁公开课 - 旧约导论课程节选

Well, of course,the most famous Greek case,I think of these things, is in Sophocles' play Oedipus the King, which illustrates it perfectly well.

尼弥西斯:希腊神话中司复仇的三女神的总称 关于这种情况,最著名的希腊案例,我想是,索福克勒斯的《俄狄浦斯王》,它对其进行了完美的阐述

耶鲁公开课 - 古希腊历史简介课程节选

So this is going to tell you pretty much everything you need to know in terms of getting ready for the exam, which is next Wednesday.

这上面包括了几乎,所有的你需要知道的,关于如何准备这次考试的信息，考试时间是下周三。

麻省理工公开课 - 化学原理课程节选