A security guard could be seen spraying a fire extinguisher pointlessly against a growing fire ball.
只见一名安保人员毫无意义地对着越来越大的火球，喷洒着灭火剂。
Loss prevention officers guard against fraud, theft, fire, weather damage, and other causes of property loss.
防损官员谨防欺诈，偷窃，火灾，天气灾害和其他引起财产损失的原因。
The laboratorys safety management primarily includes: fire prevention, anti-virus and guard against theft.
实验室的安全管理主要包括防火、防毒及防盗。
It is necessary to guard against a possible attack, so that we shall not be obliged to watch every night, or to keep up a fire.
我们必须对于可能遭到的进攻有防备，这样就不需要每晚守夜或是生火了。
The work area, have fire prevention, dustproof, guard against theft and other facilities.
上述工作区域具备了防火、防尘、防盗等设备。
Guard against little cigarette end to cause fire.
谨防小小烟头引发火灾。
Guard against little cigarette end to cause fire.
谨防小小烟头引发火灾。
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