Alternate the background color for each row in the table.

替换表格中的每一行的背景颜色。

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Every alternate row in the table has a light-grey background.

表中每隔一行有一个浅灰色背景。

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Nancy and her sister will alternate in setting the table.

南茜和她姊姊轮流布置餐桌。

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Nancy and her sister will alternate in setting the table.

南茜和她姊姊轮流布置餐桌。

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