那些利用货币走势的或是利用本币和外币债券之间的差价套利的高频交易公司，希望能够以最小的阻力将资金注入或撤出某个国家。
HFT firms which seek to exploit currency movements or arbitrage price differences between local-currency and foreign-currency bonds want to move funds in and out of a country with minimal friction.
从理论上讲，套利是指在不同的市场上同时买进和卖出两个相同的商品，以赚取差价。
In theory, arbitrage is the simultaneous purchase and sale of two identical commodities to take advantage of price variations in different markets.
套利活动使两个市场间的差价缩小。
The difference in prices between the two markets was reduced by arbitrage.
套利活动使两个市场间的差价缩小。
The difference in prices between the two markets was reduced by arbitrage.
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