heart-to-heart
noun [ C usually singular ] uk/ˌhɑːt.təˈhɑːt/ us/ˌhɑːrt.təˈhɑːrt/
促膝谈心，交心
a serious conversation between two people, usually close friends, in which they talk honestly about their feelings
We had a heart-to-heart over a bottle of wine. 我们就着一瓶葡萄酒促膝谈心。
a heart-to-heart talk/chat 敞开心扉的交谈／闲聊