三年内，她生了两个儿子：威廉王子和哈利王子。

Within three years, she had given birth to two sons, the Prince William and Harry.

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一路上威廉王子和哈利王子都在不同时间间隔的致敬(当经过警卫队？或是纪念碑？)

Also, the way he and Prince Harry both saluted a various intervals when passing guard formations?

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奥巴马夫妇前日抵达肯辛顿宫与威廉王子、凯特王妃和哈利王子进行非正式会见，并共进晚餐。

The Obamas arrived at the palace for an informal dinner with Prince William, Kate Middleton and Prince Harry.

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