finger in the air
成語所屬單字air
finger in the air — 慣用語
1. An estimate or method that is not accurate or scientific, based on guessing.
1.慣用語
釋義
憑感覺猜測
An estimate or method that is not accurate or scientific, based on guessing.
例句
The budget was just a finger in the air guess.
Our plan is a bit finger in the air, but we'll try.