" Until" specifies a certain period of time when something can (or cannot) happen unless something else happens.
“Until”指定某段时间，除非发生其他事情，否则某些事情可以（或不能）发生。
2015 English Cafe
It's a somewhat of a poetical way of describing a certain period of time during the first part of the day.
在一天的第一部分，这是一种描述特定时间段的诗意方式。
英语百科
Life annuity
A life annuity is an annuity, or series of payments at fixed intervals, paid while the purchaser (or annuitant) is alive. A life annuity is an insurance product typically sold or issued by life insurance companies. Life annuities may be sold in exchange for the immediate payment of a lump sum (single-payment annuity) or a series of regular payments (flexible payment annuity), prior to the onset of the annuity.