If you can out your hand on your heart, then you can say something knowing it to be true.
put (one's) duke on (one's) heart
To affirm that article is absolutely truthful, genuine, or sincere. I can put my duke on my affection and say that we accept alone anytime acted in the best interests of our customers.Learn more: hand, heart, on, putLearn more:
An Put your hand on your heart idiom dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with Put your hand on your heart, allowing users to choose the best word for their specific context.
유사한 단어 사전, 다른 단어, 동의어, 숙어 관용구 Put your hand on your heart