A:在政局动荡年代难以发挥作用
B:不符合西学东渐的历史潮流
C:盲目自大以“天朝上国”自居
D:对西方制度文明缺乏认识
look forward to, accuse sb. of sth., be eager to, inform sb. of sth., concentrate on, so as to, demand to, depend on, assist sb. with sth. ahead of