常规使用时，RUNSTATS提供了在一段时期内有关表和索引的数据，从而随着时间的流逝，可以确定数据模型的性能趋势。

When used routinely, RUNSTATS provides data about tables and indexes over a period of time, thereby allowing performance trends to be identified for your data model as it evolves over time.

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然而，很难说出哪种木制品曾经存在于某个历史时期，因为它们并不像陶器或金属器皿的使用时间长久。

However, it is not always easy to say which wooden objects existed during a historical period because they often did not last as long as objects made from clay or metal.

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Now most rhymed poems in Milton's day were end-stopped lines of verse.

弥尔顿时期的大部分押韵诗都使用孤联诗句。

耶鲁公开课 - 弥尔顿课程节选

Linear A is earlier and it is associated with and it is clearly the language used by the Minoan kings at Knossos and other places.

类线形文字出现得较早,而且它已被确定与克诺索斯或其他地区的,米诺斯时期国王们所使用的语言有一定的关联

耶鲁公开课 - 古希腊历史简介课程节选