There is no special system for trading dollars through search, but users can use foreign exchange trading platforms when trading, and there are many such platforms. Users had better choose regular ones.
Foreign exchange trading platform refers to some independent traders with certain strength and credibility in the foreign exchange market, who report the buying and selling price of currency to investors 24 hours a day except holidays, and accept the buying and selling requirements of investors at this price.
The US dollar is the legal tender of the United States of America, and the issuing authority is Congress, which is handled by the Federal Reserve Bank. There are six denominations: 1 cent, 5 cents, 1 cent, 25 cents, half dollar and1yuan. The denominations of paper money are 1 USD, 2 USD, 5 USD,1USD, 20 USD, 50 USD and 100 USD. The USD and RMB can be exchanged, for example, on August 6, 2020, 1 USD =6.950 1 RMB, 1 RMB ≈ 0.1USD 439, subject to the transaction price at the bank counter. Users can change money directly at the bank counter, and all four state-owned banks can change money. When users exchange dollars in the bank, it is best to choose the exchange rate that is beneficial to them, so that they can get more money when exchanging. Users should consult the bank in advance when exchanging money. After all, not all bank outlets can exchange money. It should be noted that users should make an appointment in advance when the exchange quota is large.
The interest rate hike of the US dollar means that the Fed raises interest rates, which means that the interest rate of American deposits has increased. Because the dollar is an international currency, people will consider putting their deposits in banks to earn interest. Naturally, if the dollar in circulation in the market decreases, the dollar will appreciate and the RMB will depreciate relatively. Raising interest rates in the United States means raising the deposit and loan interest rates of banks. More and more investors will choose to reduce their investment in the stock market and deposit their money in the bank, which has a great impact on the whole stock market. Once the United States raises interest rates, a large amount of mainland funds or foreign funds will flow into the US market, leading to the appreciation of the US dollar and the depreciation of the RMB, which will greatly increase the cost of imported products and raw materials in some countries outside the United States.