The doctor alerted me to the danger of a heart attack.

医生提醒我注意“心脏病”发作的危险。

My heart hurts because I failed in the exam.
考试挂科了，我的心好痛。


My heart was beating at a normal rate.
我的心脏以正常速率跳动着。


I was glad when the doctor told me my heart beat was normal.
当医生告诉我心跳正常的时候，我很开心。

His heart is weak.

他心脏衰弱。

※We can not tell the precise moment when friendship is founded, As in filling a vessel drop by drop, there is at last a drop which makes it run over ; so in a serics of kindness there is at last one which makes the heart run over.——James Boswell, British writer 我们无法讲出友谊缔造的确切时刻，就像一点一滴地倾注一个容器一样，终有一滴使容器满溢；因此，面对接二连三的好意，终有那么一次会动人心弦，情谊洋溢。英国作家 博斯韦尔,J.
※A merry heart goes all the way. 生性乐天，终身受用。
※It is dangerous crisis when a proud heart meets with flattering lips 骄傲的心碰上献媚的嘴，是最危险不过的。
※Two things doth prolong your life: a quiet heart and a loving wife. 心情平静妻贤淑，延年益寿多得福。