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<正>Last month, Diane visited her friends who livein San Francisco, California. This was Diane’s firsttime in the city, and she enjoyed her opportunitiesto walk around and explore.On the first day of her trip, Diane visited theGolden Gate Bridge. This red suspension bridge（悬索桥） measures 1.7 miles in length. Dianeand her friends did not walk across the bridge. However,
