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 added that a student had dressed up as a policeman and was playing all sorts of silly jokes on people.
还对工人说,有个学生常装扮成警察无聊地同别人开玩笑。