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。 Ordinarily, they survey and sample massive parts of terrain to determine where excavation will yield valuable facts. Huge rubbish dumps and sprawling landfills represent one of the far more not comfortable impacts that humans have on wildlife. trait： 多指人的性格、心情的特征，尤指先天秉赋的持久... https://propertiessalegurgaon.blogspot.com/