The swimmer swimmer, The

ABCjun

The teacher told the class the story of a man who swam a river three times before breakfast.

Johnny laughed.

"Do you doubt that a good swimmer could do that?" asked the teacher.

"No, sir," answered Johnny, "but I wonder why he did not swim it four times and get back to the side where his clothes were."　

x-ace

三次？
四次？
是个问题