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。

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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。

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Sometimes they're reluctant to take part in important training such as fire safety classes and child identification programs, which guard against abduction.

VOA: standard.2010.07.22

They allege the men, who were on board an Italian commercial vessel to guard against Somali pirates, opened fire on the fishing boat.

WSJ: India Court Lifts Travel Ban on Italian Envoy

The men, who were on board an Italian commercial vessel to guard against pirates, are accused of opening fire on the fishing boat.

WSJ: India Court Lifts Travel Ban on Italian Envoy