dizygotic twins

例句：

1. 1.They are the rarest of all human births, with only one in every 20,000 births being dizygotic twins.
   他们是所有人类出生中最罕见的，每20,000个婴儿中只有一对是异卵双胞胎。
2. 2. The dizygotic twins were born at the same hospital and have been friends since theywere babies.
   这对异卵双胞胎在同一家医院出生，从他们还是婴儿的时候就成为了朋友。
3. 3. The dizygotic twins' genetic makeup is so different that they can be considered as two completely separate individuals.
   这对异卵双胞胎的遗传构成如此不同，以至于他们可以被视为两个完全不同的个体。