Nationwide activities or situations happen or exist in all parts of a country.
The rising number of car crimes is a nationwide problem.
汽车犯罪不断增加是个全国性的问题。
If an activity or situation happens or exists nationwide, it happens or exists in all parts of a country.
The figures show unemployment falling nationwide last month.
数字显示,上个月全国范围的失业率有所下降。