However, operators must not rely exclusively on these safety devices: they must also become fully familiar with the safety guidelines presented below to ensure accident-free operation.

不过，使用者一定不要单单依赖这些安全装置：他们也必须完全熟悉下面所示的安全指南以确保无事故操作。

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They had to be cut free from their car after the accident.

事故后，得破开汽车把他们救出来。

《牛津词典》

Or do you think it's an accident that file-sharing and free culture have roots in the free software community?

那么你想一想文件分享和自由文化是否是根植于自由软件文化的？

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In three-fifths of the case, the rates given were more than 25 percent higher for the accident-free motorists.

FORBES: Why Safe Drivers Aren't Always Charged The Lowest Car Insurance Rates

From a safety perspective, the airline industry has enjoyed a remarkable accident-free run.

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As far as hitting that absolute zero accident rate, Deluliis says that some shifts and mines have been accident-free for about a year.

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