digress

1. V-I If you digress, you move away from the subject you are talking or writing about and talk or write about something different for a while. 离题

I've digressed a little to explain the situation so far, so let me now recap. 我刚才稍微离题说明了迄今的情况，现在让我重述一下要点。

She digressed from her prepared speech to pay tribute to the president. 她偏离了预先准备的讲稿，对总统表示了敬意。

2. digressionN-VAR

The text is dotted with digressions. 文本中到处是离题话。