现在表中已经填充了数据，并且可以使用某种方式访问它，那么现在从帐户12345中检索过期时间量。
With the table now populated with data and a means to access it, retrieve the amount overdue from account 12345.
所有的书都是过期的吗？那么多久才会出新版本？
Are many of the books donated already out-of-date, given how often text books seem to come out with new editions?
很容易确定若干个过期值中的最小值，而两个可能的缓存作用域最小值却不是那么明显。
While the minimum of several expiration time values is easy to determine, the minimum of two possible cache scope values is less obvious.
应用推荐