The article discusses the impact of the US Federal Reserve's interest rate hike on China's economy and financial sector. The author highlights that as the US raises its interest rates, it reduces money supply, leading to a decline in demand for Chinese goods in the US market, causing the value of the Chinese yuan to depreciate. This has led to problems for China's trade and financial sectors. To address this issue, the author suggests that China should allow its currency to float freely, reform its banking sector, and increase interest rates to attract foreign capital.