not believe your eyes
US /nɑt bɪˈliːv jʊər aɪz/
UK /nɑt bɪˈliːv jʊər aɪz/

1.
不敢相信自己的眼睛
to be so surprised by something that you think you are imagining it
:
•
When I saw the famous actor walking down my street, I could not believe my eyes.
当我看到那位著名演员走在我家街上时,我简直不敢相信自己的眼睛。
•
She opened the gift and could not believe her eyes; it was exactly what she wanted.
她打开礼物,简直不敢相信自己的眼睛;这正是她想要的。