由于国际银行不管位居何处都喜欢用美元借贷，因此这些互换安排相当于让外国中央银行能够在紧急情况时向本地银行提供美元贷款。
Because international banks, wherever they are located, tend to borrow in dollars, the swap arrangements allow foreign central banks to lend dollars to their local banks in times of emergency.