For the year ended December 31,

(Amounts in thousands of RMB and US$, except for number of shares and per share data)

2021

2022

2023

Class A

Class B

Class A

Class B

Class A

Class B

RMB

US$

RMB

US$

Numerator:

Net loss

(4,628,133

)

(1,800,926

)

(671,187

)

(135,696

)

(75,959

)

(10,699

)

(15,320

)

(2,158

)

Accretion of redeemable
   convertible preferred shares

(207,598

)

(80,782

)

—

—

—

—

—

—

Accretion of redeemable
   noncontrolling interests

—

—

(6,230

)

(1,260

)

(7,157

)

(1,008

)

(1,443

)

(203

)

Numerator for computing basic
   and diluted net loss per share

(4,835,731

)

(1,881,708

)

(677,417

)

(136,956

)

(83,116

)

(11,707

)

(16,763

)

(2,361

)

Denominator:

Weighted average number of
   ordinary shares outstanding

140,170,091

54,543,800

269,787,113

54,543,800

270,432,437

270,432,437

54,543,800

54,543,800

Loss per share (RMB):

Basic and diluted net loss
   per share:

(34.50

)

(34.50

)

(2.51

)

(2.51

)

(0.31

)

(0.04

)

(0.31

)

(0.04

)