With a shortage of chromosomes, a developing fetus will likely grow into a child with down syndrome.
如果缺省染色体,一个处于成长阶段的胚胎可能发育成一个具有不良综合症的小孩。
You will not have to spend the next few days recovering from a long and arduous journey.
用不着因为漫长的旅途的辛苦而花几天时间休息来恢复精神。