Nearly one out of three births in America is to an unwed mother.

在美国，几乎每三个新生儿当中就有一个系未婚妈妈所生。

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Nearly one out of three births in America is to an unwed mother.

在美国，几乎每三个新生儿当中就有一个系未婚妈妈所生。

youdao