This problem can be subdivided into the following points.

1. The domestic market is certain and there is no need for so many commodities. If you import too much, it will inevitably hit the domestic manufacturing industry, which is equivalent to shooting yourself in the foot.

2. These foreign exchange reserves are not all foreign currencies, and a considerable part of them are securities marked with foreign bonds and stocks, which cannot be exchanged immediately, but can only be exchanged into foreign currencies after maturity.

2. Maintaining a certain amount of foreign exchange reserves is conducive to maintaining the balance of payments at home and abroad, so that when purchasing foreign products, you can withdraw enough funds in time. Of course, China has too many foreign exchange reserves, which is really bad for China's economy. This is related to China's economic development model, and the country will gradually adjust in the future.