PREPAID EXPENSES AND OTHER CURRENT ASSETS (Tables)

12 Months Ended

Dec. 31, 2019

PREPAID EXPENSES AND OTHER CURRENT ASSETS

Schedule of prepaid expenses and other current assets

	As of December 31,
	2018	2019
	RMB	RMB	US$
Prepaid expenses	565,710	878,155	126,139
Tax recoverables	421,654	570,913	82,007
Staff advances	10,730	1,866	268
Interest receivables	12,037	14,359	2,063
Deposits	39,971	17,391	2,498
Loan to third parties	58,909	73,557	10,565
Others	50,563	61,908	8,893
	1,159,574	1,618,149	232,433