Mexico has historically had high drop-out rates as poor families pull kids out of school to help put food on the table, and children often sell candy and crafts in the streets or work in restaurants.

历史上，墨西哥的辍学率一直很高，因为贫困家庭让孩子辍学，帮助解决温饱问题。孩子们经常在街上卖糖果和工艺品，或者在餐馆打工。

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This demonstrates that you can pull out only those columns of interest, and you can also extract them from the table in a different order than they exist within the database.

这说明您可以只提取感兴趣的三个列，还可以使用与数据库中的顺序不同的顺序从表中提取它们。

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Pull out both leaves of the table.

把桌子的两块活动面板都拉出来。

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