Must-wear-safety-helmet
网络释义：必须戴安全帽；必须带安全帽
网络释义
1.必须戴安全帽 必须戴护耳器 Must wear ear protector 必须戴安全帽 Must wear safety helmet 必须戴防护帽 Must wear protective cap ...
2.必须带安全帽 灭火设备： Fire-fighting equipment 必须带安全帽： Must wear safety helmet 基本框架 basic framework ...
例句释义:,必须戴安全帽,必须带安全帽1.He said: " all visitors to the site must wear safety helmet, I wear a helmet for my own safety. "美国代表疑惑不解，摇头不干，说：“我戴安全帽是为了我自己的安全，不是给哪一位领导看的。”
2.All visitors to the site must wear safety helmet.到工地的所有参观者必须带上安全帽。