at liberty
成語所屬單字liberty
at liberty — 慣用語
1. Free to do something because you are not busy, restricted, or prohibited; availa
1.慣用語
釋義
自由的；可隨意做某事的
Free to do something because you are not busy, restricted, or prohibited; available or allowed.
例句
I will call you back when I am at liberty to speak freely about the matter.
The detective said he was not at liberty to discuss the details of the ongoing investigation.