我只能选入门课程，因为这些特定主题没有中级课程可选。

I could only take intro courses because there were no intermediate level courses available for those particular topics.

youdao

该功能允许快速定位特定主题的消息。

This feature lets you quickly locate messages on a particular subject.

youdao

词典是对某个特定主题的最完整描述。

A thesaurus is the most complete description for a particular topic.

youdao

And on specific holidays that deal with the themes of nature in the fall.

在秋天有一些特定的节日,都是有关自然的主题。

普林斯顿公开课 - 人性课程节选

And it also allows us to look for certain key words and themes.

它也允许我们查找,特定的关键字和主题。

哈佛公开课 - 计算机科学课程节选

And so, there's certain themes we're going to explore here.

所以，我们要探讨特定的主题。

耶鲁公开课 - 心理学导论课程节选