open port city的用法和样例：
例句
- Mom Palace is located in the road outside the city of Shantou in the first days of the Temple, and adjacent to the temple, is the first former Shantou early construction.
老妈宫就是位于汕头市外马路头的天后宫，与毗连的关帝庙，是汕头开埠前最早的建筑。 - The dissertation mainly discusses the trade development of Hankow Port and theinteractive relationship of economic changes with its hinterland after its opening.
本文主要探讨近代开埠后汉口港的贸易发展及其与腹地之间经济关系的互动变迁。
