Traditional downtown Xian refers to the area encircled by the city wall, this has now been expanded to encompass the area within the second ring road (er 'huan Lu).

传统的市中心区是指被西安的城墙包围的地区，现在已经被扩大到包括在二环路的区域。

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Traditional downtown Xian refers to the area encircled by the city wall, this has now been expanded to encompass the area within the second ring road (Er' huan Lu).

传统的西安市中心是城墙以内的地区，现在已经扩展到二环路以内了。

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The report was also able to follow the movements of a ring-necked parakeet around London, as the British range of this colourful bird expanded.

ECONOMIST: The oldest bird in the world