Researchers recently found kimberlite ( ' , 金伯利巖) deposits hinting at the existence of diamonds.
出自-2016年12月閱讀原文
Clothes and other items that need to be tried on such as diamond rings and gold necklaces are generally not suited to virtual retailing, and, of course, items with a low value- to-weight ratio.
2015年12月六級(jí)真題（第一套）聽(tīng)力 Section C
Sixteen years earlier, Pahlsson had removed the diamond ring to cook a meal.