1.
PHRASE
If you feel or believe something with all your heart, you feel or believe it very strongly. 真心实意地
[强调]
例：
My own family I loved with all my heart.
我真心实意地爱我的家人。
2.
PHRASE
If you say that someone is a particular kind of person at heart, you mean that that is what they are really like, even though they may seem very different. 实际上
例：
He was a very gentle boy at heart.
他实际上是一个非常温和的男孩。
3.
PHRASE
If you say that someone has your interests or your welfare at heart, you mean that they are concerned about you and that is why they are doing something. 放在心上
例：
She told him she only had his interests at heart.
她告诉他，她心里头只有他的利益。
4.
PHRASE
If someone breaks your heart, they make you very sad and unhappy, usually because they end a love affair or close relationship with you. 使某人心碎
[文学性]
例：
I fell in love on holiday but the girl broke my heart.
我在度假时坠入情网，但那个女孩却使我心碎。
5.
PHRASE
If something breaks your heart, it makes you feel very sad and depressed, especially because people are suffering but you can do nothing to help them. 使某人心碎
例：
It really breaks my heart to see them this way.
看到他们这样确实让我心里难过。
6.
PHRASE
If you know something such as a poem by heart, you have learned it so well that you can remember it without having to read it. 靠记忆
例：
Mack knew this passage by heart.
麦克会背这一段。
7.
PHRASE
If someone has a change of heart, their attitude toward something changes. 态度的改变
例：
Several brokers have had a change of heart about prospects for the company.
几位代理商对于该公司前景的态度已有所改变。
8.
PHRASE
If something such as a subject or project is close to your heart or near to your heart, it is very important to you and you are very interested in it and concerned about it. 为某人所重视
例：
This is a subject very close to my heart.
这是我十分关心的一个话题。
9.
PHRASE
If you can do something to your heart's content, you can do it as much as you want. 尽情地
例：
I was delighted to be able to eat my favourite dishes to my heart's content.
我很高兴能够尽情地享用我最喜欢的菜肴。
10.
CONVENTION
You can say "cross my heart" when you want someone to believe that you are telling the truth. You can also ask "cross your heart?" when you are asking someone if they are really telling the truth. 在胸口划十字发誓
[口语]
例：
And I won't tell any of the other girls anything you tell me about it. I promise, cross my heart.
我不会把你告诉我的与其有关的任何事情告诉任何其他女孩。我保证，我发誓。
11.
PHRASE
If you say something from the heart or from the bottom of your heart, you sincerely mean what you say. 发自内心地
例：
He spoke with confidence, from the heart.
他讲话充满自信，发自内心。
12.
PHRASE
If you want to do something but do not have the heart to do it, you do not do it because you know it will make someone unhappy or disappointed. 不忍做
例：
We knew all along but didn't have the heart to tell her.
我们一直都知道，但是不忍心告诉她。
13.
PHRASE
If you believe or know something in your heart of hearts, that is what you really believe or think, even though it may sometimes seem that you do not. 在内心深处
例：
I know in my heart of hearts that I am the right man for that mission.
我在内心深处知道，我正是完成那项使命的最合适人选。
14.
PHRASE
If your heart isn't in the thing you are doing, you have very little enthusiasm for it, usually because you are depressed or are thinking about something else. 不热衷于
例：
I tried to learn some lines but my heart wasn't really in it.
我试图记住几行诗句，但我确实对此不感兴趣。
15.
PHRASE
If you lose heart, you become sad and depressed and are no longer interested in something, especially because it is not progressing as you would like. 灰心丧气
例：
He appealed to his countrymen not to lose heart.
他呼吁同胞们不要灰心丧气。
16.
PHRASE
If your heart is in your mouth, you feel very excited, worried, or frightened. 心提到嗓子眼里
例：
My heart was in my mouth when I walked into her office.
我走进她的办公室时，心提到了嗓子眼。
17.
PHRASE
If you open your heart or pour out your heart to someone, you tell them your most private thoughts and feelings. 对某人敞开心扉
例：
She opened her heart to millions yesterday and told how she came close to suicide.
她昨天向大众敞开心扉，讲述了自己几乎要自杀的原委。
18.
PHRASE
If you say that someone's heart is in the right place, you mean that they are kind, considerate, and generous, although you may disapprove of other aspects of their character. 心地善良
例：
He's rich, handsome, funny, and his heart is in the right place.
他富有、英俊、风趣，而且心地善良。
19.
PHRASE
If you have set your heart on something, you want it very much or want to do it very much. 一心渴望
例：
He had always set his heart on a career in the fine arts.
他一心想从事一项美术方面的职业。
20.
PHRASE
If you take heart from something, you are encouraged and made to feel optimistic by it. 得到鼓舞
例：
Investors and dealers also took heart from the better than expected industrial production figures.
投资者和经销商们也从高于预期的工业产值中受到鼓舞。
21.
PHRASE
If you take something to heart, for example someone's behaviour, you are deeply affected and upset by it. 对某事物十分介意
例：
If someone says something critical I take it to heart.
如果谁说一些批评的话，我就往心里去。