Check your system date and time.

请检查您的系统日期和时间。

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The date tool can do much more than just print the current system date.

date工具可以完成更多的工作，不仅仅只是打印出当前的系统日期。

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Display the current time in the given FORMAT, or set the system date.

按照给出的格式显示时间或者设置系统日期。

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But it is becoming clear that the system that has been in place for years now, is not sufficiently up-to-date to take full advantage of the information we collect and the knowledge we have,".

VOA: standard.2009.12.29

Although one company - ITV plc - now owns all the regional stations based in England and Wales, some aspects of the regulatory system date back to the days when each station in the network was a distinct entity.

BBC: South of Scotland could see STV switch

The U.S. Army dedicated its largest solar photovoltaic (PV) system to date at White Sands Missile Range in New Mexico today.

FORBES: U.S. Army Dedicates World's Largest Low-Concentration PV Facility

He said alongside the software, people still needed to run a firewall and keep their browser and operating system up to date with the latest patches and fixes.

BBC: Microsoft launches free security