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。
But that's impossible.Carol and Tom invited us to lunch.Look through the window.
但这是不可能的。卡罗尔和汤姆请我们来吃午饭。从窗子往里看看。