to no avail
成語所屬單字avail
to no avail — 慣用語
1. without producing the result that was wanted, despite the effort that was put in
1.慣用語
釋義
徒勞無功；毫無效果
without producing the result that was wanted, despite the effort that was put in.
例句
Firefighters worked through the night, but their efforts to save the barn were to no avail.
Rosa called her brother five times to apologize, all to no avail.