be as fresh as a daisy
US /bi æz frɛʃ æz ə ˈdeɪzi/
UK /bi æz frɛʃ æz ə ˈdeɪzi/

1.
아주 상쾌한, 활기찬
to be full of energy and enthusiasm, typically after a good night's sleep
:
•
After a long nap, she woke up as fresh as a daisy.
긴 낮잠 후에 그녀는 아주 상쾌하게 일어났다.
•
Even after working all night, he was still as fresh as a daisy.
밤새 일한 후에도 그는 여전히 아주 상쾌했다.