Adolescent suicide is rarely an impulsive reaction to immediate distress.青少年自杀很少是由于突然发生不幸而作出的冲动反应。He spent his adolescent years playing guitar in the church band.他在教堂的乐队里弹吉他，度过了他的青少年时期。A little adolescent rebellion is co...
Photo Gallery: Azurite crystals from Arizona seem to pulse with color.矿物的图片集.蓝铜矿的结晶来自亚利桑那州好像添加彩色.Azurite's brilliant color adds to its popularity in creating semiprecious stones.兰铜矿灿烂的色彩加上它的声望造成准宝石的宝石.Limited compan...