假如你是李华，你的美国网友Peter对你博客里的一幅漫画很感兴趣，给你留言询问其含义。 请你根据以下提示给他回贴。 1)成语“闻鸡起舞”的典故； 2)成语寓意。 

注意： 

1)词数100左右； 

2)可以适当增加细节，以使行文连贯； 3)开头语已给出。 

参考词汇：patriotic爱国的；crow啼叫，报晓 Dear Peter, 

The picture is about a Chinese idiom “wen ji qi wu”. … Yours, Li Hua  

范文： 

Dear Peter, 

The picture is about aChinese idiom “wen ji qi wu”. This idiom originated from a well-known story happened in Xin Jin Dynasty. In order to serve their country well, two patriotic young men, named Zu Ti and Liu Kun, both got up and practised sword playing the moment they heard the cock crow. Day by day and year in, year out, they never stopped. Later, they all made great contributions to protecting their country. 

Nowadays, people usually use the phrase “rising up upon hearing the crow of a rooster to practise sword playing” to signify that someone is exerting himself to do something worthwhile. It is also used to describe that a person of noble aspirations exerts himeself in time. 

If you have any other questions about this idiom, please tell me. 

Yours, 

Li Hua