A'Lai仁六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 chlorination plant氯气消毒装置a weather forecaster天气预报员a peak in current.电流的峰值a ramshackle old bus快要报废的公共汽车a woman on horseback骑马的女郎a pedestrian walkway人行道.A floating kidney.游走肾A regular tweener.标准的"左右不靠"。a man of common clay尘世间的人a rectangular figure矩形

1. Trade Union representatives are chosen by election.
   工会代表是经选举产生的。
2. A union representative was dispatched to the factory.
   工会代表被派遣去工厂。