卵细胞染色体数目错误可能会导致胚胎流产，或导致唐氏综合征之类的严重婴儿病症。
Having the wrong number of chromosomes can cause an embryo to miscarry, or lead to serious medical conditions such as Down's syndrome.
很多使胚胎发生破坏或者丢失染色体而导致流产，但有一些则出现如唐氏综合征这样的状况！
Many embryos that have damaged or missing chromosomes miscarry, but others go on to produce conditions such as Down's syndrome.
同年，一位日本女性在被告知她所就医的国有医院弄错了胚胎，于是选择了流产。
And just this year, a Japanese woman aborted her pregnancy after she was told there had been a mistake at a government-run hospital.
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