从前，有一个叫做李医生的人，他以给人们治病为生。
有一天，一个名叫张三的病人来找他看病。
李医生诊断后，发现张三病得很重，需要好好休息和调养。
李医生告诉张三：“你需要戒酒，并且要洗肠，这样你的身体才能慢慢恢复。”
但是，张三并没有听从李医生的建议，他仍然继续喝酒，也不做任何治疗。
不久之后，张三的病情加重了，最后不幸去世。
在送葬的时候，李医生对大家说：“如果张三当时听了我的劝告，戒酒并洗肠，他就不会这么早离开我们。”
这时，人群中有一位叫王五的人站了出来。
他对李医生说：“高明的大夫，现在说这些已经没有用了。你应该在张三生病的时候就用这些话去劝告他，而不是在他死后才说出来。”
这个故事告诉我们，在朋友遇到困难的时候，我们应该及时给予帮助，而不是在事后说一些毫无用处的话。
我们要学会珍惜身边的人，关心他们的健康和安全，不要等到失去他们时才后悔莫及。
Once upon a time, there was a man named Dr. Lee who made a living by treating people's illnesses.
One day, a patient named Mr. Zhang came to see him for treatment.
After diagnosing, Dr. Lee found that Mr. Zhang was very sick and needed rest and recuperation.
Dr. Lee told Mr. Zhang, "You need to quit drinking and have your intestines washed, so your body can slowly recover."
However, Mr. Zhang did not follow Dr. Lee's advice. He continued to drink alcohol and did not receive any treatment.
Soon after, Mr. Zhang's condition worsened, and he eventually passed away.
At the funeral, Dr. Lee said to everyone, "If Mr. Zhang had listened to my advice, quit drinking, and had his intestines washed, he would not have left us so soon."
At this moment, a man named Mr. Wang stepped out of the crowd.
He said to Dr. Lee, "Great doctor, it's useless to say these things now. You should have used these words to advise Mr. Zhang when he was sick, rather than saying them after his death."
This story tells us that when our friends encounter difficulties, we should give them timely help, instead of saying useless things after the fact.
We should learn to cherish the people around us, care about their health and safety, and do not wait until we lose them to regret.
