The number of cities included in the wwis website now exceeds 800 and the number of page views has increased nearly four - fold since the introduction of a set of specially designed weather icons in august 2003 前者所包括的城市总数已超过800个，自从今年八月开始采纳一套经精心设计的天气标志后更令网页浏览次数急升近四倍。
2.
The number of cities included in the wwis website now exceeds 800 and the number of page views has increased nearly four - fold since the introduction of a set of specially designed weather icons in august 2003 前者所包括的城市总数已超过800个，自从今年八月开始采纳一套经精心设计的天气标志后更令网页浏览次数急升近四倍。
