wild goose chase
US /waɪld ɡuːs tʃeɪs/
UK /waɪld ɡuːs tʃeɪs/

1.
徒勞無功, 白費力氣, 瞎忙活
a foolish and hopeless pursuit of something unattainable or nonexistent
:
•
Searching for the lost treasure turned out to be a complete wild goose chase.
尋找失落的寶藏結果是一場徹底的徒勞無功。
•
Following those rumors was a total wild goose chase; there was no truth to them.
追隨那些謠言完全是徒勞無功;它們毫無根據。