英语笑话：English Joke - A Wooden Leg

My friend said he knew a man with a wooden leg named Smith.
So I asked him, "What was the name of his other leg?"

Why is this funny?

It's funny because of the confusion¹ between these two phrases;
"a man with a wooden leg" and "a wooden leg named Smith."

Listen to the joke again.
(See above.)

1 confusion   

n.困惑，迷乱，混淆，混乱，骚乱

参考例句：

• His answers to my questions have only added to my confusion.他对我的问题的回答只是使我更加困惑不解。
• His unexpected arrival threw us into total confusion.他的突然来访使我们完全不知所措。