Absent-minded Professor

An absent-minded professor came home very late one night. When he got to his door， he realized he had forgotten his key. He knocked and knocked until finally his wife opened the door. Since it was very dark， she did not recognize him and explained， “Im sorry， sir， but the professor is not at home.” The professor， absent-minded as ever， replied， “Well， Ill come back tomorrow.”

一天晚上，一位心不在焉的教授很晚才回家，到家門口时他才想起自己忘了带钥匙。他不停地敲们，终于，他的妻子起来开了门。天很黑，妻子没有认出他来，解释道，“很抱歉，先生，教授不在家。”这个心不在焉的教授接着答道，“那我明天再来吧。”