The 30,000 I borrowed from my brother on Saturday was converted into more than 4,100 U.S. dollars. I made a profit of 4,000 U.S. dollars in three days in the currency circle, and the foreign exchange was about 3,000 U.S. dollars. Today, the total funds reached 10,000 U.S., and I accumulated a lot of money by shorting Nasdaq last week. I lost 11,000 of my own capital and borrowed 4,000U, totaling 15,000U until I was liquidated... I hope to make 15,000U without generating 2,000U of profit, so I can repay the 4,000U in three installments, leaving 15,000U of capital to start with, and I will pay back my brother when I reach 20,000U. of thirty thousand