youngsters,teenagers,adolescentsYoung adolescents are happiest with small groups of close friends.青少年在和自己小圈子里的好友呆在一起时最为开心。What turns teenagers off science and technology?是什么使青少年对科学技术丧失了兴趣?In dealing with suicidal youngsters, our aims should be clear.在对待有自杀倾向的青少年时,我们的目标应当很明确。