take someone's breath away
US /teɪk ˈsʌm.wʌnz brɛθ əˈweɪ/
UK /teɪk ˈsʌm.wʌnz brɛθ əˈweɪ/

1.
couper le souffle, émerveiller
to be extremely beautiful or surprising
:
•
The view from the mountain top really took my breath away.
La vue du sommet de la montagne m'a vraiment coupé le souffle.
•
Her beauty took his breath away.
Sa beauté lui a coupé le souffle.