out of thin air
US /aʊt əv θɪn ɛr/
UK /aʊt əv θɪn ɛr/
1.
憑空, 突然出現
appearing or happening suddenly and unexpectedly, as if from nowhere
:
•
The magician made a rabbit appear out of thin air.
魔術師讓一隻兔子憑空出現。
•
Ideas don't just come out of thin air; they require effort and thought.
想法不是憑空產生的；它們需要努力和思考。