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。
The only funny things we heard that evening came from the advertiser at the beginning of the programme.
那天晚上唯一有趣的事情是节目开始时那个报幕员的开场白。