Psychologists and social workers have only begun to discover reasons for the second most common cause of death among teenagers, and they are still a long way from providing solutions.

• 译文：心理学家和社会服务人员刚刚开始发现造成青少年死亡的第二个最常见的原因，他们提供解决办法的道路仍然漫长遥远。