specimen          
noun [ C ] uk/ˈspes.ə.mɪn/ us/ˈspes.ə.mɪn/
C2 样品;标本;样本
something shown or examined as an example; a typical example
  He has a collection of rare insect specimens. 他收集了很多稀有昆虫的标本。 
 Museums will pay large amounts of money for good dinosaur fossil specimens. 博物馆愿意出大价钱购买完好的恐龙化石标本。 
 Astronauts brought back specimens of moon rock. 宇航员带回了月球岩石的样本。 
  (用于化验的)血样,尿样
a small amount of blood or urine used for testing
  They took blood and urine specimens for analysis. 他们采集血样和尿样作分析。