当然，其中不乏严重警告的信号。

Of course, there are some important caveats.

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亚洲有很多大城市，其中不乏世界级的城市和大都会。

Asia has lot of big cities, many of which are world class and fairly cosmopolitan.

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紧接着的创作对象是繁华的街道，其中不乏繁忙的地铁入口。

Lively street scenes followed, including the busy entrances to underground stations.

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