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 party then searched the whole cave thoroughly but did not find anything except an empty tin trunk.
队员们接着又把整个洞彻底搜寻了一遍,但除了一只空铁皮箱外什么也没找到。