91.fend off挡开;

　　92.establish the social rank order建立社会等级秩序;

　　93. be supposed to应该, 被期望;

　　94. head off阻止, 拦截;

　　95. have an advantage over/of胜过, 优于;

　　96.struggle to竞争;

　　97.figure out领会到;

　　98.set up建立;

　　99.be bound to一定要;

　　101.regardless of不管, 不顾;

　　102.attach to使依恋, 把...放在;

　　103.be classified as 被列为;

　　104.a group of一群;

　　105.pass off发生并完成;

　　106. come forward自告奋勇,自愿;

　　107distinguish right from wrong明辨是非;

　　108.all in all总之.