1.learn...byheart用心学习，记住2.combine...with...使...与...结合/联合3.inthatcircumstances如果那样的话4.replace...with...用...代替...5.keeparecordof记录6.commenton...对...发表评论7.atleast至少8.expectof/from...从...当中期待9.inreturn作为回报10.thesurveyon...关于...的调查11.differin...在...方面不同12.emergefrom...从...出现13.besatisfiedwith...对...满意14.play...roles扮演...的角色15.leanover...弯...
