11.20

571. initial /i'nifel/ adj.最初的，开始的572. artificial /a:tI'fI∫(ə)I/ adj.人工的573. crucial /'kru:∫(a)l/ adj.关键性的574. potential /pau'ten∫(a)l/ adj.潜在的575. represent /reprI'zent/v.展示576. regardless/ri'ga:dlIs/ adv.不管577. reproduce/ri:pra'dju:s/v.复印578. commend /ka'mend/v.赞扬 579. recommend /.reka'mend/v.推荐，580. respond /rI'sppnd/v.回复，作出反应581. revenue /'revanju:/n.收益，收入582. recall /r1'ko:l/ v.回忆起，记起583. retrieve /rI'tri:v/v.取回,找回584. replace /rI'pleIs/ v.代替，取代 585. recruit /rr'kru:t/v.招聘，征募(新兵)586. release /rI'li:s/v.释放，发泄n.发布587. resist /rI'zist/v.反对，抵制588. retail /'ri:terl/v./n.零售 589. mortgage /'mo:gid3/v./n.抵押590. sample /'sa:mp(a)l/n.样本 591. predator /'predata/ n.捕食性动物592. prior/'praie/ adj.先前的，优先的593. client /'klaiant/ n.客户，委托人594. particular /pa'tikjula/ adj.特别的595. establish /I'staebliJ/v.建立，确定596. status /'stertas/ n.地位，状况597. estate /I'steit/ n.地产 598. sceptical /'skeptikal/ adj.怀疑的599. subtle /'st(a)l/ adj.微妙的，细微的600. substitute/'sAbstitju:t/n.代替物