单词：safety device
safety device的用法和样例：
例句
- The efficiency of any automatic safety device should be checked before every nitration.每种自动安全装置应在每次硝化前进行检验。
- Yolk is a design for a head protection device which revolutionizes the image and associations the specific user group has with safety equipment.蛋黄是为头部保护装置所作的设计，它使特定用户群对安全装置的印象及联想发生了革命性的改变。
- Following public consultation earlier this year, we have drawn up a programme to improve fire safety in private buildings.今年较早时，我们在征询公众意见后，制定了一套改善私人楼宇消防安全设施的计划。
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英语新闻
assure vt.向（某人）保证 I can assure you that this is the best restaurant in town. 我向你保证，这是城里最棒的一家餐厅。 Sam wasn't able to assure her of his support. 山姆无法向她保证要支持她。 assurance n.保证；
赖世雄进阶英语词汇3500