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我们知道,大多数女性一次妊娠出生一个婴儿,而多胎妊娠则是一次妊娠可以出生2个或2个以上的婴儿。这是比较少见的。
We know that most women give birth to one baby in one pregnancy, while in multiple pregnancies, two or more babies can be born in one pregnancy. This is relatively rare.