動詞 recur:

1. happen or occur again
   同義詞：repeat
2. return in thought or speech to something
   同義詞：go back
3. have recourse to
   同義詞：fall back, resort

1. The recurring decimal 3.999 ... is also described as 3.9 recurring.
   循環(huán)小數(shù)｀3.999 ... ＇亦作｀3.9循環(huán)＇.
2. His fever recurred.
   他的感冒又復發(fā)了。
3. My first meeting with her often recurs to my memory.
   我與她的第一次會面的情景經(jīng)常出現(xiàn)在我的記憶中。

re.cur

v.intr.（不及物動詞）
re.curred,re.cur.ring,re.curs
To happen, come up, or show up again or repeatedly.See Synonyms at return
再發(fā)生：重新或反復地發(fā)生、產生或出現(xiàn)參見 return
To return to one`s attention or memory.
重新：重新引起注意或浮上心頭
To return in thought or discourse.
反復涉及，提及：在思考或談話時回想或回述
To have recourse:
訴諸：具有手段辦法：
例句：
recur to the use of force.
訴諸武力

來源：
Latin recurrere
拉丁語 recurrere
re- [re-]
re- [前綴re-]
currere [to run] * see kers-
currere [奔跑] *參見 kers-

【引伸】
recur.rence
n.（名詞）