topic

英 /ˈtɒpɪk/ 　美 /ˈtɑːpɪk/

Food is always a popular topic in our house.

食物在我们家一直是个热门话题。

Climate change has become a central topic in school discussions about the future of our planet.

气候变化已成为学校讨论地球未来时的核心话题。

搭配

a topic of discussion 讨论的话题a controversial topic 有争议的话题change the topic 转换话题research topic 研究课题

topic指讨论或写作的主题；title指文章等的标题。

topical (adj.)