| 释义 |
act up act up — phrasal verb with act /ækt/ verb
1 F0 If a person, especially a child, acts up, they behave badly: » Sophie got bored and started acting up.Thesaurus+: ↑Bad and wrong behaviour , ↑Disobedient , ↑Obeying and breaking the law , ↑Obedient and compliant2 F0 If a machine or part of the body acts up, it does not perform as well as it should: » My car always acts up in cold weather.» Her shoulder was acting up (= hurting because of injury).Thesaurus+: ↑Not functioningThesaurus+: ↑Pain and painful |