胎发生 meaning in Chinese

embryogeny

They do the same thing that is naturally done in the case of twins or quintuplets . there is only one egg and one embryo , and then it splits itself into two or three or five or four or six . so now , ask yourselves : how many souls are in there
他们就是模仿双胞胎或多胞胎发生的情形，从一个受精卵或胚胎分裂成二三四五或六个，现在你们想想看会有多少个灵魂在那里？