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单词 act up
释义 act up
intransitive verb
1. : to act in a way different from that which is natural, normal, usual, or expected: as
 a. : to behave in an unruly, recalcitrant, or capricious manner
  < skittish and inclined to act up with an unaccustomed rider >
  < occasionally the river acts up >
  < I'd advise you not to act up with me >
 b. : to show off
  < children acting up for the benefit of anyone who cared to notice >
 c. : to function improperly
  < this typewriter is acting up again >
2. : to become active or acute (as of a physical infirmity) after being quiescent
 < an old injury to his right forefoot began to act up again — New Yorker >
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更新时间:2025/7/24 3:24:46