西北部的用法和样例：
例句
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毛伊岛美国夏威夷州夏威夷岛西北部岛屿。是该州的第二大岛，经济主要建立在蔗糖、菠萝和旅游业基础上
An island of Hawaii northwest of Hawaii Island. It is the second-largest island in the state, with an economy based chiefly on sugar cane, pineapples, and tourism. -
这位歌手终生致力于研究中国西北部的民间传说。
The singer devoted his whole life in study of the folklore in the northwest part of China. -
这座城市位于加拿大的西北部。
The city is located in the northwest part of Canada. -
西北部有一大片丘陵地带。
There is a large hilly area in the northwest.
