If you roll back the system date, cron will not run any scheduled jobs until the clock reaches the date that the system had before the date roll-back.

如果你将系统的日期返回时钟计时程序将不能运行任何的计划任务直到时钟达到日期返回以前的时间为止。

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It's when the publication date looms that we have to roll up our sleeves and tackle the real literary labor: rabid self-promotion.

只有在出版日期迫近时我们才卷起袖子来做真正的写作工作：疯狂地进行自我推销。

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Enter appropriate values for the Roll forward to transaction date and time.

为Roll forward to transaction日期和时间输入适当的值。

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"The effect of today's ruling is to roll back eligibility to the date originally proposed by the Parliamentary Ombudsman, " he said.

BBC: High Court backs Equitable plan

What this ritual interchange reveals is a larger habit of thinking about the more enjoyable things in life: They're only on loan or acquired on credit, and sooner or later the date when they must be paid for will roll around.

CNN: Our romance with debt -- we'll pay later

Research in Motion seems to be on a roll now that it has announced the launch date of its BlackBerry 10 platform in January 2013.

FORBES: RIM On The Rebound As BB10 Nearing Launch Gives Investors Hope