open port city的用法和樣例：
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.
老媽宮就是位於汕頭市外馬路頭的天后宮，與毗連的關帝廟，是汕頭開埠前最早的建築。 - The dissertation mainly discusses the trade development of Hankow Port and theinteractive relationship of economic changes with its hinterland after its opening.
本文主要探討近代開埠後漢口港的貿易發展及其與腹地之間經濟關係的互動變遷。
