1.If you are in the domestic life of poor white collar, to the United States you will feel a serious gap.
如果你在国内生活不差的白领阶级，到了美国你会感到严重的落差。
2.In education, a serious gap has existed between agricultural science and other areas of natural science.
在教育方面，农业科学和自然科学其它领域之间存在严重的空白。
3.This is a serious gap in quality control.
这是质量控制中严重的缺口。
4.For example, there is a serious gap in maternal and child care services.
例如，在孕产妇和儿童保健服务方面存在着严重的差距。