If it was a twenty-year bond, there would be forty coupons, one for each six-month period, and each one would have a date on it.

假如是20年债券,会有40张息票,每六个月一张,并且上面会有日期

耶鲁公开课 - 金融市场课程节选

But now that's a two bedroom and they each pay about two thousand a month,

那套房子有两间卧室，每间卧室每月2000美金，

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It's not forever because it terminates after 2T periods of six-month interval each.

债券不是永续的,券息每六个月为一期,共支付2T期

耶鲁公开课 - 金融市场课程节选