图片新闻【510】金饰头盔

Model Anissa Von Busse wears an 18-carat gold headpiece during a promotion for an exhibition by the Australian Gold Council for Gold Week in Sydney April 7, 2005. With Australia being the world's third largest producer of the precious metal behind South Africa and the United States, producers hope to encourage more people to wear gold in the face of stiff competition from diamonds, opals and other 'objects of desire'. REUTERS/David Gray

词汇：

karat 克拉(宝石的重量单位)
headpiece n.头盔, 帽子
precious metal n. 贵金属
encourage vt.鼓励, 怂恿
stiff adj.硬的, 艰难的, 费劲的
opal n.[矿]蛋白石, 猫眼石, 乳色玻璃