a lightweight protective helmet (plastic or metal) worn by construction workers

a worker skilled in building offices or dwellings etc.

A guy in a hard hat looked over at us and said, 「Are you looking for a house?

一个带着安全帽的家伙看了看我们，问道：你们在找房子吗？

GeorgeOsborne, Britain」s chancellor, seems to agree. He seldom misses a chance to puton a hard hat and proclaim the virtues of more roads and railways.

乔治·奥斯本作为英国的大臣似乎认同这一说法，他很少错过任何一个机会去戴上安全帽并宣讲修更多铁路和更多公路的好处。

Santa Claus has been forced to carry out his Christmas duties cowering under a hard hat after youths in a Scottish town pelted him with festive mince pies.

日前，苏格兰某小镇的圣诞老人遭到「百果馅饼」的袭击，因此不得不戴着安全帽上岗。

You「ll have to wear this hard hat for the tour.

参观时必需戴上这安全帽。

「A guy in a hard hat looked over at us and said, 」Are you looking for a house?「」 says Mary.

一个带着安全帽的家伙看了看我们，问道：你们在找房子吗？「Mary说。」

I」ll call you if you give me a name card. A: you'll have to wear this hard hat for the tour.

给我一张名片吧，我会打电话给你…a：参观时必需戴上这安全帽。

To combat the dangerous working conditions, bridge designer Joseph Strauss introduced the hard hat and a safety net that stretched end to end under the bridge. Nineteen workers fell.

为了要对抗危险的工作环境，桥梁设计师约瑟夫·史特劳斯(JosephStrauss)引进了安全帽，并且在桥梁下方两端绑上一个安全网，因而拯救了19位坠落的工人。