So, if it's a four-year bond, it would trade at about $90, 6% so it would be yielding 6%.

所以，如果这是四年期的债券，那么它可能在大约90美元左右进行交易，因此它的收益率大约在。

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So, if a bond was issued when interest rates were lower, they might have a 4% coupon when the prevailing rate is 6%.

所以，如果一只债券在利率很低的时候发行，在汇率为6%的的时候，它们可能有一个4%的票息。

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