The Dunhuang frescoes are gems of ancient Chinese art.敦煌壁画是我国古代艺术中的瑰宝.a crown studded with gems镶有宝石的皇冠These crystals occur in nature and are the gems known as rubies.这些晶体是天然存在的,人们称之为红宝石.One who cuts , polishes, or engrav...
A Dr Matthew Owens was reported missing while on an expedition to north-eastern Turkey.据报道，一位叫马修·欧文斯的博士在前往土耳其东北部考察的途中失踪了。The police said their suspicions were aroused because Mr Owens had other marks on his body...警方说欧文斯...