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。 Usually, they survey and sample massive parts of terrain to ascertain exactly where excavation will yield valuable information and facts. Massive garbage dumps and sprawling landfills constitute one of the extra not comfortable impacts that human beings have on wildlife. And Plainly, people abov... https://share.evernote.com/note/5e31abf8-8e28-9d2a-260b-9d7986090e1a