但在美国，这些年来房子越造越大，而每个家庭的子女数量仍稳定在2个左右。

But in the U.S., houses have grown larger in recent years, while family sizes have remained roughly steady at around 2 kids.

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但在美国，这些年来房子越造越大，而每个家庭的子女数量仍稳定在2个左右。

But in the U. S., houses have grown larger in recent years, while family sizes have remained roughly steady at around 2.

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那即将到来，而每个家庭，每个个体，需要预期自救并自己寻找安全地点，在灾难到来之前。

This is coming, and each family, each individual, needs to anticipate saving themselves and taking themselves to safety, to safe locations, well before these times arrive.

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