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Beijing has 678 kilometers of railway lines, and about 370 km of rail transit lines under construction will begin operations in the next two to three years. Over 17 million trips are expected to be taken on the city's subway every weekday by 2022.

Before, only major league players had access to "real-time shooting and analysis systems".

Beijing and Tianjin both contributed a lot of help.

Before he enrolled at the center, he was selling pesticides and agricultural machinery.

Before e-commerce, rural residents had to buy consumer goods and farming materials alike from local stores or middlemen. For many highly specialized products, there was no way for sellers to find buyers in cities.