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TAXATION - Loss before income taxes consists (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2022
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
CNY (¥)
Dec. 31, 2020
CNY (¥)
TAXATION        
Non - PRC ¥ 45,211 $ 6,555 ¥ 5,451 ¥ (142,750)
PRC (885,107) (128,327) (534,688) (298,903)
Loss before income tax ¥ (839,896) $ (121,772) ¥ (529,237) ¥ (441,653)