When Was Rome Built?

Teacher: When was Rome built? 
Tom: At night. 
Teacher: Who told you that? 
Tom: You did. You said Rome wasn't built in a day. 

老师：罗马是什么时候建成的？ 
汤姆：在夜里建成的。 
老师：谁告诉你的？ 
汤姆：是您啊。您说过罗马不是在一个白天建成的。