张昕杰和姚凯艳已经在一起五年了。

Eric Zhang, left, and Yao Kaiyan have been together for more than five years.

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这是教育作家凯伦·施韦策提供的一张主人席位。

This is a guest post from education writer Karen Schweitzer.

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凯文：好的，我订一张。

Kevin: OK, I'll take one.

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凯文：好的，我订一张。

Kevin: OK, I'll take one.

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