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INTERIM CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS ¥ in Thousands, $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2020 CNY (¥) ¥ / shares shares | Sep. 30, 2020 USD ($) $ / shares shares | Sep. 30, 2019 CNY (¥) ¥ / shares shares
Net revenues: (include transactions with related parties of RMB29,100 and RMB23,639 for the nine months ended September 30, 2019 and 2020, respectively) |  |  |
Net revenues | ¥ 2,060,719 | $ 303,511 | ¥ 894,451
Cost of revenues: (include transactions with related parties of RMB24,597 and RMB83,337 for the nine months ended September 30, 2019 and 2020, respectively) |  |  |
Cost of revenues | (1,131,902) | (166,711) | (646,259)
Gross profit | 928,817 | 136,800 | 248,192
Operating expenses: |  |  |
Sales and marketing expenses (include transactions with related parties of RMB9,902 and RMB8,832 for the nine months ended September 30, 2019 and 2020, respectively) | (1,892,237) | (278,696) | (417,111)
Research and development expenses (include transactions with related parties of RMB14,234 and RMB18,168 for the nine months ended September 30, 2019 and 2020, respectively) | (296,513) | (43,672) | (186,113)
General and administrative expenses (include transactions with related parties of RMB3,467 and RMB10,787 for the nine months ended September 30, 2019 and 2020, respectively) | (93,080) | (13,709) | (41,856)
Total operating expenses | (2,281,830) | (336,077) | (645,080)
Loss from operations | (1,353,013) | (199,277) | (396,888)
Interest (expense)/income, net (include interest expenses charged by related party of RMB 22,379 and RMB 23,369 for the nine months ended September 30, 2019 and 2020, respectively) | (1,518) | (224) | (16,433)
Others, net | 51,547 | 7,592 | 17,192
Loss before tax | (1,302,984) | (191,909) | (396,129)
Income tax expenses | (2,434) | (358) | (2,441)
Net loss | (1,305,418) | (192,267) | (398,570)
Net (income)/loss attributable to noncontrolling interests | 383 | 56 | (935)
Net loss attributable to the Company | (1,305,035) | (192,211) | (399,505)
Accretions of convertible redeemable preferred shares to redemption value | ¥ |  |  | (32,209)
Net loss attributable to ordinary shareholders of the Company | (1,305,035) | (192,211) | (431,714)
Net loss | (1,305,418) | (192,267) | (398,570)
Other comprehensive income: |  |  |
Foreign currency translation adjustment | (19,466) | (2,867) | 55
Total other comprehensive income/(loss) | (19,466) | (2,867) | 55
Total comprehensive loss | (1,324,884) | (195,134) | (398,515)
Comprehensive (income)/loss attributable to noncontrolling interests | 383 | 56 | (935)
Comprehensive loss attributable to the Company | (1,324,501) | (195,078) | (399,450)
Accretions of convertible redeemable preferred shares to redemption value | ¥ |  |  | (32,209)
Comprehensive loss attributable to ordinary shareholders of the Company | ¥ (1,324,501) | $ (195,078) | ¥ (431,659)
Net loss per ordinary share/ADS |  |  |
Basic | (per share) | ¥ (11.60) | $ (1.71) | ¥ (4.69)
Diluted | (per share) | ¥ (11.60) | $ (1.71) | ¥ (4.69)
Weighted average number of ordinary shares/ADSs |  |  |
Basic | shares | 112,517,299 | 112,517,299 | 92,000,000
Diluted | shares | 112,517,299 | 112,517,299 | 92,000,000
Learning services [Member] |  |  |
Net revenues: (include transactions with related parties of RMB29,100 and RMB23,639 for the nine months ended September 30, 2019 and 2020, respectively) |  |  |
Net revenues | ¥ 1,423,025 | $ 209,589 | ¥ 454,980
Cost of revenues: (include transactions with related parties of RMB24,597 and RMB83,337 for the nine months ended September 30, 2019 and 2020, respectively) |  |  |
Cost of revenues | (673,331) | (99,171) | (341,558)
Learning products [Member] |  |  |
Net revenues: (include transactions with related parties of RMB29,100 and RMB23,639 for the nine months ended September 30, 2019 and 2020, respectively) |  |  |
Net revenues | 302,647 | 44,575 | 84,977
Cost of revenues: (include transactions with related parties of RMB24,597 and RMB83,337 for the nine months ended September 30, 2019 and 2020, respectively) |  |  |
Cost of revenues | (212,425) | (31,287) | (58,477)
Online marketing services [Member] |  |  |
Net revenues: (include transactions with related parties of RMB29,100 and RMB23,639 for the nine months ended September 30, 2019 and 2020, respectively) |  |  |
Net revenues | 335,047 | 49,347 | 354,494
Cost of revenues: (include transactions with related parties of RMB24,597 and RMB83,337 for the nine months ended September 30, 2019 and 2020, respectively) |  |  |
Cost of revenues | ¥ (246,146) | $ (36,253) | ¥ (246,224)

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