大学英语：重要词汇arrive on 到达;arrive at 到达某地(小地方);得出

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