51. arise from(=be caused by)由…引起。
52. arrange for sb.sth. to do sth. 安排…做…
53. arrive on 到达; arrive at 到达某地(小地方);得出，作出;arrive in 到达某地(大地方);
54. be ashamed of (=feel shame, guilt or sorrow because of sth. done) 以…为羞耻
55. assure sb. of sth. (=try to cause to believe or trust in sth.) 向…保证，使…确信。
56. attach(to)(=to fix, fasten; join) 缚，系，结
57. make an attempt at doing sth. (to do sth.)试图做…
58. attend to (=give one’s attention, care and thought)注意，照顾;attend on(upon)(=wait upon, serve, look after)侍候，照料
59. attitude to toward …对…的态度。看法
60. attribute…to…(=to believe sth. to be the result of…)把归因于，认为是的结果
