The "one bank and three committees" refer to China's financial regulatory agencies and major participants in the financial market. This statement stems from the reform and adjustment of China’s financial regulatory system, which involves multiple departments and organizations.

Specifically, "one bank" refers to:

1. People's Bank of China (PBOC): China's central bank, responsible for formulating and executing monetary policies, maintaining financial stability, Manage the RMB exchange rate, supervise financial markets, etc.

The "Three Meetings" refer to the three financial regulatory agencies, namely:

1. China Banking and Insurance Regulatory Commission (CBIRC): responsible for the supervision of the banking and insurance industries. Supervision, including market access, business approval, risk management and control, etc.

2. China Securities Regulatory Commission (CSRC): Responsible for the supervision of the securities and futures industry, including market access, business approval, risk management and control, etc.

3. State Administration of Foreign Exchange (SAFE): Responsible for the supervision of the foreign exchange market and cross-border capital flows, including foreign exchange reserve management, exchange rate policy implementation, foreign exchange market management, etc.

The "one bank and three committees" together form the core of China's financial regulatory system and play an important role in maintaining financial stability, preventing financial risks, and promoting the healthy development of the financial market.