美国一项研究表明，个子高的女性生双胞胎的可能性较大。

Taller women are more likely to have twins, according to a US study.

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有一对23岁的双胞胎姐妹参加了我们的研究项目，她们的骨密度相当于一个77 岁老妇的骨密度。

They both had bone densities of a 77-year-old woman。

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美国一项研究表明，个子高的女性生双胞胎的可能性较大。

Taller women are more likely to have twi , according to a US study.

youdao

对分开抚养的同卵双胞胎已进行了许多研究。

A number of studies have been made of identical twins raised apart.

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对分开抚养的同卵双胞胎已进行了许多研究。

A number of studies have been made of identical twins raised apart.

youdao