A mother who already has non-identical twins is more likely to conceive another set of twins.

生育过非同卵双胞胎的母亲再怀上双胞胎的可能性更大。

柯林斯例句

Non-identical twins are the result of two fertilised eggs implanting in the uterus at the same time.

非同卵双生子是两个受精卵同时在子宫内着床的结果。

柯林斯例句

Non - identical twins from mixed parents, of different races, less common still.

来自不同种族的混合双亲的异卵双胞胎更为少见.

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