我住在广州和上海很短的时间。

I have lived in Guangzhou and Shanghai for short periods of time.

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房一多补充说道，包括北京、广州和上海在内的一线城市在同一时期拥堵情况降低40%。

First-tier cities including Beijing, Guangzhou, and Shanghai see congestion reduce by 40 percent during the same period, Fang added.

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设计的最高时速是250公里。这些列车已被广泛应用于大城市，如北京、上海、苏州、深圳和广州。

The designed top speed is 250km/h. These trains have been widely used for main city, such as Beijing, Shanghai, Suzhou and Shenzhen, Guangzhou.

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