西北部的用法和樣例：
例句
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毛伊島美國夏威夷州夏威夷島西北部島嶼。是該州的第二大島，經濟主要建立在蔗糖、菠蘿和旅遊業基礎上
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. -
這位歌手終生致力於研究中國西北部的民間傳說。
The singer devoted his whole life in study of the folklore in the northwest part of China. -
這座城市位於加拿大的西北部。
The city is located in the northwest part of Canada. -
西北部有一大片丘陵地帶。
There is a large hilly area in the northwest.
