【全球唯一圈养棕色大熊猫在西安与公众见面[熊猫]】 5月28日，西安市周至县秦岭四宝科学公园开园试运营。园内全球唯一的圈养棕色大熊猫“七仔”在当天与公众见面。 The world's only captive brown panda "Qizai," born in 2009, met the public when a science park in Zhouzhi County, northwest China's Shaanxi Province, started trial operations on Friday.