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。 excellent： 最普通用词，既可指有形或无形的特性，又可指个性或共性的特征。 The newest congressional report acknowledges the crucial worth of technical education, but also asserts that the review of the humanities (人文学科)and social sciences have to keep on being central elements of The usa's ins... https://luxuryhousingingurgaon.blogspot.com/