haplometrosis

例句：

1. 1. The patient had haplometrosis, which made it difficult for her to conceive.
   患者患有单倍体不育症，这使得她难以怀孕。
2. 2.The study found that haplometrosis was a significant factor in the decline of the population.
   研究发现，单倍体不育症是人口减少的一个重要因素。
3. 3.The researchers discovered that haplometrosis could be caused by environmental factors such as pollution and radiation.
   研究人员发现，单倍体不育症可能是由环境污染和辐射等因素引起的。