hiddened problems of safety

• 安全隐患

hiddened problems of safety的用法和样例：

例句

1. Review of hazards and safe work methods.
   对安全隐患与安全工作方法进行复习预防背部受伤。
2. He said Brazilian officials have been aware of safety concerns for some time.
   他说巴西官员已经注意到这一安全隐患有一段时间了。