例句與造句

1. Geographers Chauncy Harris and Edward Ullman developed the multiple nuclei model in 1945.
2. Due to its many different central districts Johannesburg would fall under the multiple nuclei model in human geography terms.
3. The paper, published in the " Annals of the American Academy of Political and Social Science ", described the Multiple nuclei model of urban development, which had prophetic relevance for understanding American cities in the later 20th century.
4. It's difficult to find multiple nuclei model in a sentence. 用multiple nuclei model造句挺難的