fool's errand片语KK [fulz ˋɛrənd] /fulz ˈɛɹənd/发音片语1徒劳之举、白费工夫、无用的差事Arguing with him about politics is a fool's errand.跟他争论政治完全是徒劳之举。2白跑一趟They sent me on a fool's errand to a store that had closed.他们让我白跑一趟,那家店早就关门了。用这个字练口说→