一个信用违约互换就象一张火灾保险单：持有人定期支付保险费，但是假如房屋被烧毁，就有一笔大额偿付。
A CDS works like a fire-insurance policy: the holder pays a regular premium, but if the house burns down there is a big payoff.
我注意到，讲中文的人经常把英文中的第三人称代词和集体名词单复数搞错（英文中的他和她不能互换）。
One of my observations is that Chinese speakers tend to have trouble with third-person pronouns (he and she aren't interchangeable in English) and collective plurals.
在考虑商品的便利收益情况下，探讨了商品互换及其期权的定价。对价格是随机的情形建立了单因素模型；
This paper explores the pricing of commodity swaps and options on commodity swaps in the presence of convenience yields.
秤台单一需单配，互换性差。
秤台单一需单配，互换性差。
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