英语翻译A history teacher was talking to his class about ancient

英语翻译
A history teacher was talking to his class about ancient Romand.
"They were very stong,brave people,and all of them were good soldies,"he said."They always wanted to be stronger ,so they played a lot of games."
"Did they swimming?"one of the girl asked."Swimming makes people's bodies strouger."She was very good at swimming.
"Oh,yes,some of them often swam a lot."the teacher answered.Then he told them a story about one famous Roman.
"There was a big,wide river in the missle of Rome,"he said."It was the Tiber,and this man swam across it three times every day in the morning."
The gil could noy help laughing when she heard this.
"What are you laughing at?"the teacher ask her angrily."Have I said anything funny?"
"Well,sir,"the girl smiled and answered."Why didn't he swim across the river for four times,to get back his clothes again?"