China's economy grew at a frail pace in the second quarter as demand weakens at home and abroad, with the post-COVID momentum faltering rapidly and raising pressure on policymakers to deliver more stimulus to shore up activity. Chinese authorities face a daunting task in trying to keep the economic recovery on track and putting a lid on unemployment, as any aggressive stimulus could fuel debt risks and structural distortions. Gross domestic product grew just 0.8% in April-June from the previous quarter, on a seasonally adjusted basis, data released by the National Bureau of Statistics showed on Monday, versus analysts' expectations…