It was a wildgoose chase. 白费了半天劲。a wildgoose chase: 野鹅性野, 行踪不定, 人们很难捕获, 故wildgoose chase 指“徒劳之举”, “白费力气的追逐”。
本文链接:https://www.xukeng.com/kouyu/kouyucailiao/161788.html