digression
🇺🇸
/daɪˈɡreʃn/
🇬🇧
/daɪˈɡreʃn/
a departure from the main topic in a conversation or writing
During the lecture, the professor went on a digression about his favorite books, which was entertaining but not relevant to the topic.
在讲座中,教授进行了关于他最喜欢的书籍的离题,这很有趣,但与主题无关。