心底深处用英语怎么说

"Heart of hearts" is a phrase that can be used to describe the innermost, deepest part of one's being or emotions. It is often used to describe a person's true feelings or motivations.
This phrase likely comes from the metaphor of the heart as the center or core of a person's being, both physically and emotionally. In many cultures and languages, the heart is often associated with emotions, love, and personal character.
Here are a few examples of how this phrase can be used in English:
"She knew in her heart of hearts that she couldn't go through with the plan." (她心底深处知道她做不到这个计划。)
"He tried to hide his true feelings, but I could see in his heart of hearts that he was deeply troubled." (他试图隐藏他真正的感觉，但我能从他心底深处看出他很困扰。)
"Despite his tough exterior, I knew in my heart of hearts that he was a kind and compassionate person." (尽管他看起来很强硬，但我心底深处知道他是一个善良和富有同情心的人。)