Nine-year-old Kate Middleton shows her true colors - and a toothy grin - in a photo taken at prep school around 1991.

9岁的凯特·米德尔顿本色出镜——一个露齿的微笑——这张照片摄于1991年左右她就读小学的时候。

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In the U. S. most students from other countries have to study at prep schools for a half year before moving into college.

在美国，很多外国留学生得先在预科学校学习半年左右才能进入大学学习。

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In the U. S. most students from other countries have to study at prep schools for a half year before moving into college.

在美国，很多外国留学生得先在预科学校学习半年左右才能进入大学学习。

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