[] () the practice of buying sth (for example shares or foreign money) in one place and selling it immediately in another place where the price is higher 套利，套购（在一处买进股票、外汇等，在另一外价高之处立即抛售）◆investors hoping to exploit an arbitrage opportunity 希望利用套利机会的投资者➡risk arbitrage ▸ˈarbitrage