The company has promised to investigate claims that its products are unsafe.公司承诺对其产品存在安全隐患的投诉进行调查。Any package left unattended will be deemed a security risk.任何无人看管的包裹都将被视为安全隐患。The car was recalled for possible safety defects.因存在安全隐患，汽车被厂方召回。That old staircase is a safety hazard. 那个旧楼梯有安全隐患。