4. hard-hearted/heart of stone 无情的，心肠硬，铁石心肠

This hard-hearted woman pushed her son into a running car. She's so crazy.

这个狠心的女人把自己的儿子推向一辆正在行驶的汽车，她真是疯了。

5. pour out one's heart 倾诉衷肠

Landscape photography offers an opportunity to pour one's heart out for Mother Nature.

风光摄影是面对大自然时的一种痛快淋漓的情感宣泄。

6. have a heart 发慈悲

Everyone should have a heart of gratitude, we must learn to appreciate the people around.

每一个人都应该怀有一颗感恩之心，我们要学会去感激身边的人。

7. chicken-hearted 胆怯，胆小鬼

He is nothing but a chicken-hearted coward.

他只是一个胆怯的懦夫。

8. heart is in one's mouth  十分紧张，焦急万分

It is dangerous. My heart is in my mouth.

真危险，我的心快要跳出来了。

9. heart to heart 诚恳的，诚心的

Love is not a bond, or a relationship, but more of a heart to heart conversation.

爱不是一种结合，或一种关系，它更多的是一种心灵和心灵的交谈。

10. change of heart 改变看法

I used to believe in strict discipline for children. But after I had my own, I had a change of heart.

过去我认为对孩子必须严格，但我有了自己的孩子后，我的看法改变了。