Short selling is an investment term for stocks and futures. For example, when you expect a stock to fall in the future, sell the stock you own when the current price is high (the actual transaction is to buy a put contract), and then buy it when the stock price falls to a certain extent and return it to the seller at the current price, so the difference is your profit.

That is to say, these international experts speculate on the RMB exchange rate, and when the RMB exchange rate reaches the highest level, they sell RMB and exchange it for other currencies to obtain intermediate profits, which leads to the RMB exchange frenzy in China and the overall economic downturn in China. Even the collapse of the government (that is, when these financiers make the peak value of 1 = 0. 1 RMB by means of speculation, they sell the RMB and exchange it for dollars to earn the difference).