In most cities couples are allowed only one child, but there are exceptions.

大部分城市里的夫妻只被允许生一个小孩，但是也有例外。

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Couples who are both only children can also have a second child.

如果夫妻俩都是独生子女，那么他们也可以生第二胎。

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Couples who are both only children can also have a second child.

如果夫妻俩都是独生子女，那么他们也可以生第二胎。

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