在一些城市，空气中充满了污染。

In some cities, the air is filled with pollution.

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在一些城市中失业率达到了70%。

In some cities the rate of unemployment is 70%.

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在一些城市，此类基层行动已经启动。

In some urban areas, those grassroots responses are already happening.

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And though you see there's something, you know-- I've been making the case that a polis is a different thing from any other city state.

尽管你了解了一些,你知道,我一直在说,城邦和其他城市国家是不同的

耶鲁公开课 - 古希腊历史简介课程节选

and there's a lot of similarities in culture and certain parts of the city.

这两个城市在文化等一些方面有些相似。

旧金山的天气 - SpeakingMax英语口语达人

In Italy, some of these cities were able to gain control of the surrounding country and to become city states, resembling those of the ancient Greeks.

在意大利,一些城市还潜移默化地,影响了周边的区域,形成了城邦,这与古希腊的城市情况非常相似

耶鲁公开课 - 古希腊历史简介课程节选