if all else fails

成語所屬單字fail

if all else fails — 慣用語

1. You can use this to say what someone should do when every other attempt has not

1.慣用語
釋義

如果其他方法都失敗

You can use this to say what someone should do when every other attempt has not worked.

例句

If all else fails, Maya will take the train instead of driving.

If all else fails, can we just ask Brian for help?