Sometime in the early 1960s, a significant thing happened in Sydney, Australia. The city discovered its harbor. Then, one after another, Sydney discovered lots of things that were just sort of there — broad parks, superb beaches, and a culturally diverse population. But it is the harbor that makes the city.

上面一段摘自2022年高考英语全国甲卷（全国卷Ⅱ）阅读理解D。

请问专家老师，文中的 sort of there 是什么意思？

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