问题描述：
用英文概括一下内容.【3句话】
Kathy and her sister Sue like fishing.Every morning,they catch a fish and then go home.
This morning,they went fishing again and wanted to get more fish.
They fished and fished,but they couldn't catch anything but an old boot.A dolphin came out and said,"Please stop!There aren't any fish here."
So Kathy and here sister Sue had to go home without any fish.But they were very happy because they had made a new friend.
Kathy and her sister Sue like fishing.Every morning,they catch a fish and then go home.
This morning,they went fishing again and wanted to get more fish.
They fished and fished,but they couldn't catch anything but an old boot.A dolphin came out and said,"Please stop!There aren't any fish here."
So Kathy and here sister Sue had to go home without any fish.But they were very happy because they had made a new friend.
问题解答：
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