剑桥词典the laws , rules , and principles that are intended to keep people safe from injury or disease at work and in public places 保护人们在工作和公共场所安全和避免受伤的法律法规 Tonight's performance has had to be cancelled for health and safety reasons . 因为健康安全的原因，今晚的演出被取消了。 返回 health and safety