This is insurance that you pay each year for insurance in that year and it does not build a cash value.

为了这种保险可以持续生效,你每年都要缴纳保费,保费不产生现金价值

耶鲁公开课 - 金融市场课程节选

You can pay more into the cash value in one year and less in another year, as long as you keep paying a minimum amount.

你可以在某一年支付更多的现金,而在另一年支付少一些,只要投保人满足最低缴费要求就行

耶鲁公开课 - 金融市场课程节选

But then they posed a different version of the same question and the different version was: Suppose you had ordered tickets to pick them up and pay for them at the window at the concert hall and you brought $400 in cash in your pocket.

然后，他们又对同样的问题,给予了不同的假设场景：,假设你预定了两张票,你得去音乐厅的窗口,付钱然后取票,你随身带了四百美元。

耶鲁公开课 - 金融市场课程节选