day2句子
4.There are numerous unsubstantiated reports that natural vitamins are superior to synthetic ones， that fertilized eggs are nutritionally superior to unfertilized eggs，that untreated grains are better than fumigated grains and the like.
5.The desperate plight of the South has eclipsed the fact that reconstruction had to be undertaken also in the North，though less spectacularly.
6·The new accessibility of land around the periphery of almost every major city sparked an explosion of real estate development and fueled what we now know as urban sprawl.