All this, needless to say, had been culled second-hand from radio reports.不用说,所有这些都是从电台报道中采集来的二手材料。The second-hand version is a poor copy of the original.盗版版本是对原版的低劣复制。We just can't find enough good second-hand cars...
输卵管连接着卵巢和子宫。The fallopian tubes connect the ovaries with the uterus.胎儿在子宫内的发育a baby's development in the womb当受精卵植入子宫壁时,妊娠就开始了。Pregnancy begins when the fertilized egg is implanted in the wall of the uterus....