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单词 on and off
释义

on and off

idiom(alsooff and on)
C1
If somethinghappenson and off during aperiodoftime, ithappenssometimes:
时断时续地；间歇地
I've hadtoothacheon and off for acoupleofmonths.我的牙断断续续疼了几个月。
SMART Vocabulary: related words and phrases
Frequency & regularity - general words
  • (as) regular as clockworkidiom
  • -ly
  • clockwork
  • endemically
  • erratic
  • erratically
  • fitful
  • frequency
  • irregular
  • irregularity
  • irregularly
  • like clockworkidiom
  • many
  • on-again, off-again
  • on-off
  • periodic
  • periodically
  • prevalence
  • religiously
  • would
See more results »
(Definition ofon and offfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)
#https://dictionary.cambridge.org//dictionary/english/on-and-off##
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更新时间：2026/6/21 13:55:39