有句话，叫做买家没有卖家精。看完这个英语小故事，你就明白啦，哈哈哈。

An old man was selling watermelons.

一位老人在卖西瓜。

His price-list reads: 1 for $3 and 3 for $10.

他的价目表上写着：1个3美元，3个10美元。

A young man stopped by and bought 3 watermelons one by one paying $3 for each.

一个年轻人顺道买了3个西瓜，但他是一个一个买的，每次都付3美元。

As the young man was walking away, he turned around & said,

年轻人走的时候，他转过身说，

"Hey old man, do you realize I just bought three watermelons for $9 instead of $10? Maybe business is not your thing."

“嗨，老头，你知道我刚买了三个西瓜，花了9块钱，而不是10块钱？也许你不擅长做生意。”

The old man smiled and mumbled to himself, "people are funny. Every time they buy three watermelons instead of one, yet they keep trying to teach me how to do business...”

老人笑了笑，喃喃自语道：“人都很有趣。每次他们买三个西瓜而不是一个，却一直在教我怎么做生意……”