1、
2、
When the male reproductive cell fertilizes the female reproductive cell a zygote is formed.
当男性生殖细胞与女性生殖细胞发生受精时,就形成了一个合子.
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3、
When mating the female deposits her eggs into his pouch, and the male fertilizes them internally.
当交配时,雌性存放她的卵子到他的小袋, 和雄性使肥沃它们在内部.
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