521. in the position of 处在…位置上
522. in practice 实际上(状语);业务熟练(表语)
523. be(get) out of practice 荒疏,不熟练
524. bring(put)…into practice使…成为现实
525. prefer…to… (choose rather, like better) 宁要, 更喜欢
526. prepare for breakfast 准备吃早饭 ；prepare breakfast 作早饭
527. in the presence of 在…在场的情况下
528. for the present(=for the time being, for now)暂且,就现在来说; at present现在,此刻
529. preside over / at 主持(会议,业务等)
530. prevail over 占优势, 压倒, 战胜
531. prevent…from 使…不, 防止…做
532. previous to (=prior to) 在…之前
533. take pride in(=pride oneself on) 以…自豪
534. pride oneself on / upon 以…自豪
535. in principle (=only in regard to the main idea) 原则上
536. prior to (=before) 在…之前
537. in private (=privately) 私下, 秘密地；in public 公开地
538. proceed from (=arise from, result from) 由…发出, 由…引起(产生)
539. proceed with ( =begin and continue sth.) 继续进行
540. in progress(=in the state of be done)进行中
541. prohibit…from (=forbid) 禁止, 阻止
542. in proportion to 与…成比例
543. protect…from 阻止..不受,保护不受
544. be proud of 为…自豪
545. provide for 为…做准备
546. in public 公开地, 当众
547. on purpose(=by intention, deliberately)故意
548. to the purpose (=useful for one’s purpose)得要领的, 中肯的
549. be qualified¹ in 在某种科目或学科上合格；be qualified for 在某种职业上合格
550. call…in question 对…表示怀疑
551. beyond (all) question (=without question) 毫无疑问
552. out of the question (=impossible)不可能的
553. in question (=under discussion)所谈及的;
554. without question 毫无疑问
555. be caught in the rain 被雨淋了
556. at random² (=without aim or purpose) 随便地, 任意地, 胡乱地
557. range over (=cove, include) 范围包括
558. range between 范围在..与..之间不等
559. at any rate (=at all events)无论如何,总之
560. beyond the reach of 无法达到(得到,理解)