（三） 汉语里“东南西北”的先后顺序到英语里就变成了north，south，east，west；并由此有了下列中、英文表达上的差异。
东南方：southeast
西南方：southwest
西北方：northwest
东北方：northeast
如：十三陵位于北京西北50公里处。
The Ming Tombs are located about 50 km to the northwest of Beijing.
天津位于北京东南120公里处。
Tiajin is situated l20 km southeast of Beijing.
（四）要表示方位的“偏向”时通常用by
正东偏北：east by north
正南偏西：south by west
正北偏东：north by east
正南偏东：south by east
如：We are sailing in the direction of east by north.我们正朝着正东偏北方向航行。
The island lies south by east from here.那个岛位于此地的正南偏东方向。
参考资料：
http://www.51education.net/Article/HTML/8959.html看第三条！