451 write on 写,记述
452 write out 写出,取消某角色开出(药方,支票)
453 learn ... by heart 用心学习
454 combine ... with ... 与...结合
455 in that circumstances 如果那样的话
456 replace ... with ... 用...代替...
457 keep a record of 记录
458 comments on ... 关于...的意见
459 at least 至少
460 expect of/from... 从...当中期待
461 in return 作为回报
462 the survey on ... 关于...的调查
463 differ in... 在...不同
464 emerge from... 从...出现
465 be satisfied with...
466 play ... roles 扮演...的角色
467 lean over... 弯下身子 俯身于...之上
468 turn out 结果是,证明是
469 in silence 在沉默中
470 burst into laughter 突然笑出声来
471 concentrate on ... 全神贯注于...
472 be replaced by 被...所取代
473 for the purpose of... 为了..., 因...起见
474 distinguish ... from ... 区分...与...
475 communicate with... 与...交流
476 one another 彼此,相互
477 by means of... 用...的方法
478 at the approach of... 在...快到的时候
479 differ from... 与...不同
480 for instance 举例来说
481 divide ... into ... 把...划分成...
482 enable sb. to do ... 使某人能够做某事
483 wave goodbye 挥别
484 in sympathy with 同情,和...一致
485 look over 察看, 检查
486 a lack of... 缺少...
487 check with... 与...协商
488 tend to do... 趋向于做...,喜欢做...
489 call after 追喊, 以...命名
490 call for 要求, 提倡
491 fight against 与...作战(敌人之间)
492 fight with 与...作战(战友之间)
493 agreement on ... 关于...达成的协议
494 add up 合计
495 add to 增加
496 in price 在价格上
497 in the long run 从长远来看,最后
498 on offer 在出售中
499 choose from... 从...中挑选
500 be curious about... 对...感到好奇