non-identical twin

常见例句

双语例句

• The study, which investigated whether altruistic behaviour evolved as a result of ual selection, involved 70 identical and 87 non-identical female twin pairs.
  利他行为是否是两性选择发展的结果呢？该研究对此展开了调查，并选择了70对同卵双胞胎女性和87对异卵双胞胎女性作为调查对象。
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