Specimen可与sample换用，但常指人或物中选出的有代表性部分，或指供科研、化验或检验用的标本。 Generally, they study and sample large regions of terrain to find out wherever excavation will generate useful info. The newest congressional report acknowledges the critical worth of specialized teaching, but will also asserts that the examine on the humanities (人文学科)and social sciences nee... https://www.tumblr.com/gurgaonnewluxuryproperties