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並前往https://theconversation.com/us-birth-rates-are-at-record-lows-even-though-the-number-of-kids-most-americans-say-they-want-has-held-steady-197270

US birth rates are at record lows – even though the number of ...

This figure shows the downward trend in births in the U.S. as measured by the total fertility rate, a commonly used metric that describes the ...

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