分类：教育/科学-学习帮助
问题：north
north-east和north-eastern有什么区别？natnally和nationwide除词性外有什么区别？across the world,internationally,worldwide呢？ 
回答：northeast是方向，比如说
the province of Heilongjiang is in northeast of China.
northeastern是单纯的形容词
the summer is quite short in the northeastern Canada.
其他那些词基本上就是词性问题了，还有就是用的时候的语感问题