" 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。
| 单词 | Period certain |
| 释义 |
Period certain
原声例句
2014 English Cafe " 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 annuityA 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. |
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