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。
He may never be sure where the next meal is coming from, but his is free from the thousands of anxieties which afflict other people.
他可能从不知道下顿饭有无着落,但他不像有人那样被千万桩愁事所折磨。