oscillate

vi

• ① 1来回摆动,振荡2(电扇等)(周期性地)摆动3(人)(在二点之间)来回,往返<between>

• ② (心、意见、行动等)游移不定,犹豫<between>
  • Her mood oscillates between elation and depression.她的情绪在欢欣与沮丧之间游移不定。

• ③ 【电】使电流以高周率交流