Braxton-Hicks contraction是什么意思，Braxton-Hicks contraction的翻译，Braxton-Hicks contraction音标、读音、用法和例句

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Braxton-Hicks contraction是什么意思，Braxton-Hicks contraction的翻译，Braxton-Hicks contraction音标、读音、用法和例句_流逝汉英词典

Braxton-Hicks contraction

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