The first-tier cities (simplified Chinese: 一线城市; traditional Chinese: 一線城市; pinyin: yīxiàn chéngshì), or tier-1 cities, are the highest level cities in the unofficial urban classification system of the People's Republic of China. The most widely recognized first-tier cities in China mainland include Beijing, Shanghai, Guangzhou and Shenzhen.
The first-tier cities (simplified Chinese: 一线城市; traditional Chinese: 一線城市; pinyin: yīxiàn chéngshì), or tier-1 cities, are the highest level cities in the unofficial urban classification system of the People's Republic of China. The most widely recognized first-tier cities in China mainland include Beijing, Shanghai, Guangzhou and Shenzhen.
Source: Wikipedia "First‑tier city" · CC BY-SA 4.0
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