a turn对比aart.一(个)；每一(个)；任一(个)n.英语字母表的第一个字母；学业成绩得优者；表示“最好”的符号a visiting professorship客座教授职位a virulent strain of flu一种致命的流感.a sweep of green lawn.一大片绿色草坪a merely exiguous income微薄的收入a rescript for penitence罪己诏a galaxy of entertainers一群演员A staff of inspectors.检查人员的总称a well-stocked library藏书丰富的图书馆a shuffle of the cabinet内阁改组A Marxist orientation.马克思主义倾向