nationaladj.民族的；国家的；全国性的；国立的；国有的n.国民（复）nationals: 全国性比赛.nationalitiesn.民族名词nationality的复数形式.

1. While there are no definitive national statistics, there is evidence suggesting that drug-dispensing mistakes are more common than you think.
   尽管没有确定的全国性统计数据，还是有证据表明配药错误比人们想象的要更常见。