Don't let your anger consume you and don't allow important matters go unattended to.

不要让气愤消灭自己，也不能让重要的事情无人问津。

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To run unattended, a laser system must have integrated safety systems.

在无人作业的时候，激光系统必须要集成安全系统。

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The resulting technology will allow unattended ground sensors to be launched into target areas from a distance.

这将允许无人值守地面传感器（UGS）可以被发射到一定距离之外的区域。

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The 38-year-old had left the Audi A4 unattended to de-ice on his driveway at Lowry Road, St Neots, just before 07:00 GMT on Friday.

BBC: St Neots car owner injured when run over by thief

If left unattended to, Web censorship could end up costing Google and other Internet companies a bucket of cash if they have to comply with foreign governments' whims over Internet content.

FORBES: Magazine Article

He urged passengers to never leave laptops, mobile phones or valuables unattended and to be extra vigilant when trains stop at stations.

BBC: South Wales rail patrols targeting luggage thieves