可是对一些家庭来说这些小孩已经死了。

But for some families these kids are dead already.

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对一些家庭来说，也许是父母唯一的孩子，他们也可以有唯一的孩子。

For some families, maybe the parents are only child and they also can have only child.

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但是安德森表示，早睡对一些家庭来说要比其它家庭更难，了解这点非常重要。

But Anderson says it is important to understand that having early betimes may be harder for some families than others.

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