cross my heart (and hope to die)
US /krɔs maɪ hɑrt (ænd hoʊp tu daɪ)/
UK /krɔs maɪ hɑrt (ænd hoʊp tu daɪ)/
1.
我發誓, 千真萬確
used to emphasize that one is telling the truth or making a sincere promise
:
•
I promise I won't tell anyone, cross my heart.
我保證不會告訴任何人，我發誓。
•
He said he'd be there on time, cross his heart and hope to die.
他說他會準時到，他發誓。