First are the time functions, which return the hour, minute, and second of the clock.

首先是时间函数，它返回的是时钟的小时、分和秒。

youdao

Thus, the federated queries which benefit the most from asynchrony are those whose remote queries are complex and and for which it is time consuming to return the first row.

因此，能从异步中获得最多好处的联邦查询是那些其远程查询比较复杂，在返回第一行数据之前需要花费较多时间的查询。

youdao

In addition, if the remote operations take approximately the same amount of time to return the first row, then the benefit achieved in enabling asynchrony is maximized.

此外，如果远程查询都是执行大约相同一段时间之后返回第一行数据，那么异步带来的好处就可以实现最大化。

youdao

And French President Nicholas Sarkozy has decided to return France to NATO's military command for the first time in more than forty years.

VOA: special.2009.04.04

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VOA: standard.2010.05.06

The San Francisco Symphony returns to Southbank Centre for the first time in 19 years conducted by Michael Tilson Thomas, while Antonio Pappano will return for the first time since 1998 conducting Rome-based Orchestra and Chorus of the Academy of Santa Cecilia.

BBC: Entertainment & Arts

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