交谈进入到爱妒交织的复杂话题。

The conversation got into the murky waters of jealousy and relationships.

《牛津词典》

但是，她和她的团队几乎没有在微博上使用中文的经验，尤其是在讨论气候这个复杂话题的时候。

But she and her communications team have almost no experience in using the Chinese language on micro blogs, particularly when discussing this complex topic.

youdao

这不是 TT 书籍作者的过错；数据库和 XML 是深深植根于计算机科学与工程中的复杂话题。

This is not the fault of the TT book authors; databases and XML are complicated topics with deep roots in computer science and engineering.

youdao

Right, having done that, we can certainly get to more complicated things, so for example, suppose I look at that expression.

好，说完了这一点，我们就可以讲些复杂些的话题了，例如，假设我看到了这个表达式。

麻省理工公开课 - 计算机科学及编程导论课程节选

So identity, national identity is very complex, and we talk about the war--this is, it's a sparkling account.

所以说身份,国家身份在当时很复杂,然后我们谈起这场战争,这是一个很有话题的事

耶鲁公开课 - 1871年后的法国课程节选

Now, the subject, free will, is a very, very-- The subject of consciousness is a very complicated.

这个话题,自由意志,是一个非常非常,关于意识的话题非常复杂

耶鲁公开课 - 死亡课程节选