go through the motions
机械式地做某事，缺乏热情或真实的参与
口语·描述缺乏热情地做事
英文释义
to do something without enthusiasm or effort; to merely go through the required actions without genuine interest or commitment
例句
He was just going through the motions at work, not really caring about the results.
典故来源
源自表演或仪式，指机械重复动作而无真实投入，20世纪早期使用。