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to cross one's heart
01
to swear that one is telling the truth about something or is going to do something as promised
What is the origin of the idiom "cross one's heart" and when to use it?
The origin of the idiom "cross one's heart" can be traced back to the ancient practice of making a cross sign over the heart as a symbolic gesture of sincerity or commitment. The phrase signifies a solemn promise or assurance, often made with great emphasis, by crossing one's hand over their heart. It is primarily used to emphasize the seriousness and authenticity of one's words, actions, or intentions, similar to taking an oath or making a pledge.
例子
The child crossed her heart and declared that she had not eaten the last cookie, despite the crumbs on her face.
She crossed her heart and promised to keep the secret safe, vowing never to reveal it to anyone.
Before taking the witness stand, she crossed her heart, affirming that she would tell the truth, the whole truth, and nothing but the truth.
He crossed his heart and swore to always be there for his best friend, no matter the circumstances.
The politician crossed his heart during the campaign, pledging to uphold integrity and transparency if elected.
