Burdorite

例句：

1. 1. The couple's marriage was barren after years of trying.
   这对夫妻尝试了多年后婚姻仍然不育。
2. 2.The research on the genetic cause of infertility is still in its early stages.
   关于不孕症遗传原因的研究仍处于初级阶段。
3. 3.The doctor advised her to undergo fertility treatments if she wanted to conceive a child.
   如果她想生孩子，医生建议她接受生育治疗。