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Prepayments And Other Current Assets
 12 Months Ended
Dec. 31, 2021
Text Block [Abstract]  
Prepayments And Other Current Assets
7.
PREPAYMENTS AND OTHER CURRENT ASSETS
Prepayments and other current assets consist of the following:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     As of December 31,  
     2020      2021  
     RMB      RMB      US$  
Prepayments for vehicles
      403,116,119        712,544,814        111,813,830  
Vehicles and telematics devices
      54,725,824        131,722,840        20,670,188  
Deposits held by third-parties
      18,171,682        48,176,225        7,559,901  
Other receivables from third parties
      10,461,282        33,092,696        5,192,966  
Accrued input value-added tax
      26,623,275        22,922,301        3,597,009  
Prepaid expenses
      14,331,513        9,977,021        1,565,612  
Interest receivables
      4,889,508        5,655,031        887,398  
Loan to suppliers
      1,573,800        —          —    
Others
      24,467,956        18,857,709        2,959,187  
    
 
 
     
 
 
     
 
 
  
    
 
558,360,959
 
   
 
982,948,637
 
   
 
154,246,091