recur frequently 频繁发生
recur periodically 定期出现
frequently recur 频繁重现
1. The error recurred after the update.
更新后，错误再次出现了。
2. These symptoms recurred several months later.
这些症状在几个月后再次出现。
3. The problem recurred during the discussion.
问题在讨论过程中再次出现。
A: Why has this problem recurred?
A：为什么这个问题又出现了？
B: It recurred due to a technical error.
B：它再次发生是因为一个技术错误。
1) 再次发生
2) 重复出现
3) 重新出现
1. 再次发生，重现
e.g.
The symptoms recurred after a week.
症状在一周后再次出现。
verb
1. to happen again or repeatedly
Synonym: reappear, reoccur