easy to see in all conditions because of being a very bright colour

a security guard in a high-vis jacket 穿着高能见度外套的警卫

Construction workers will not be allowed on site without protective headgear and high-visibility clothing. 建筑工人必须头戴安全帽身穿高能见度外套才被允许进入工地。

noticed by many people

There is a lot of stress in such a high-visibility job. 在这样一个广为关注的职位上工作会有很多焦虑。

High-visibility policing acts as a deterrent to crime. 高姿态执行警务是一种对罪犯的威慑。