这些衍生品的合约规定，当一批被列入好几个高收益(即垃圾)指数的公司发生亏损时，伯克希尔-哈撒威需要履行其付款义务。
These derivatives require Berkshire to pay when losses occur at companies that are included in several high-yield, or junk, indexes.
包括抵押付款的零售价格指数，常被用作工资谈判的基准。
Headline RPI, which includes mortgage payments, is often used as a basis in pay negotiations.
该合约可能描述的是一笔货币金额，或付款，或某种市场指数。
The contract might describe an amount of currency or a stream of payments or a market index.
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