digress
verb /daɪˈɡres/
  /daɪˈɡres/
[intransitive] (formal)动词形式
| present simple I / you / we / they digress |  /daɪˈɡres/  /daɪˈɡres/ | 
| he / she / it digresses |  /daɪˈɡresɪz/  /daɪˈɡresɪz/ | 
| past simple digressed |  /daɪˈɡrest/  /daɪˈɡrest/ | 
| past participle digressed |  /daɪˈɡrest/  /daɪˈɡrest/ | 
| -ing form digressing |  /daɪˈɡresɪŋ/  /daɪˈɡresɪŋ/ | 
- to start to talk about something that is not connected with the main point of what you are saying离题;偏离主题 - To digress for a moment, I would like to remind you that there will be no classes next week.题外话一会儿,想提醒大家,下周不上课。 
 词源early 16th cent.: from Latin digress- ‘stepped away’, from the verb digredi, from di- ‘aside’ + gradi ‘to walk’.
- To digress for a moment, I would like to remind you that there will be no classes next week.