What you used to do is, every six months you'd pull out your bonds and you'd clip the coupons with a pair of scissors; you take them to a bank and they would give you cash for your coupons.

过去，你每六个月从你的债券上，用剪刀剪下息票，把它拿到银行，用息票兑换现金。

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What you used to do is, every six months you'd pull out your bonds and you'd clip the coupons with a pair of scissors; you take them to a bank and they would give you cash for your coupons.

过去,你每六个月从你的债券上,用剪刀剪下息票,把它拿到银行,用息票兑换现金

耶鲁公开课 - 金融市场课程节选

When people clip coupons, they tend to use them that week, and manufacturers know this.

FORBES: Six Sneaky Ways Coupons Make You Spend More