However, derivative instruments, such as forward contracts and the purchase of options, may be used to reduce foreign exchange risk on current and certain future obligations, assets and liabilities denominated in other currencies.
但是，也可能使用期货合同和购买期权等衍生工具，以降低以其他货币计算的当期和某些未来承付款、资产和负债的外汇风险。