问题描述：
英语翻译
A hippo is in or near the water most of its day.It comes out at night to eat plants.But it can't swim.It often walks or runs along the river bed very quickly.sometimes it comes up for air.
A hippo is in or near the water most of its day.It comes out at night to eat plants.But it can't swim.It often walks or runs along the river bed very quickly.sometimes it comes up for air.
问题解答：
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