| 单词 | principle |
| 释义 | principle NOTE ON USAGE 用法: Note that principle is a noun relating to rules of behaviour 注意 principle是名词, 指行为的规范 She leads her life according to Christian principles. 她以基督教教义作为生活的准则. Principal is a (rather formal) adjective meaning `main´ or `most important´ *principal是（较文的）形容词, 意为｀主要的＇或｀最重要的＇ My principal concern is my family´s welfare. 我至为关心的是我一家的幸福. the principal objections to the proposal 对该项建议的主要反对意见. As a noun it is used for the director of certain educational institutions (usually in further education) 该词若用作名词则指某些教育机构（通常属继续教育性质）之领导人 The principal and the vice-principal of the college both attended the meeting. 学院的正副院长均出席了会议. principle n 1 [C] basic general truth that underlies sth (eg a subject or a system of morality) 原理; 原则 a textbook which teaches the basic principles of geometry 讲解几何学基本原理的教科书 the principle of equality of opportunity for all 人人机会均等的原则 Discussing all these details will get us nowhere we must get back to first principles. 讨论这些枝节问题是毫无用处的, 我们必须回到基本原则上来. 2 (a) [C usu pl 通常作复数] guiding rule for personal behaviour （行为的）准则, 规范 principles of conduct 行为的准则 live according to/up to one´s principles 按自己的标准行事 She seems to have no principles at all (ie behaves immorally) when it is a question of making money. 一碰到赚钱的事, 她就好像完全不顾自己的人格了. It would be against my principles to lie to you. 对你说假话是违背我的行为准则的. (b) [U] these rules 操守; 道义; 为人之道 a woman of (high) principle 操守好的女人 He is quite without principle, ie behaves immorally. 他完全没有道德观念（做的事不道德）. It is a matter of principle with her to answer her children´s questions honestly. 如实地答覆孩子们的询问对她来说是关系到做人的大问题. 3 [sing] general or scientific law shown in the way a thing works, or used as the basis for constructing a machine, etc （事物的）工作原理; （机器等的）构造原理 These machines both work on the same principle. 这两台机器的工作原理是相同的. The system works on the principle that heat rises. 该项装置是按照热力上升的原理运转的. =>Usage at principal 用法见principal. 4 (idm 习语) in principle (a) as far as basic principles are concerned 原则上 There´s no reason in principle why people couldn´t travel to Mars, ie It is possible, though it has not yet been done. 从理论上讲, 没有理由认为人不能到火星上去（尽管目前还做不到, 但却是可能的）. (b) in general but not in detail大体上; 基本上 They have agreed to the proposal inprinciple but we still have to negotiate the terms. 他们基本上同意了那项提议, 但我们仍须商定条件. on principle because of one´s (moral) principles or a fixed belief 依据自己的（道德）原则或所确定的信念 Many people are opposed to the sale of arms on principle. 许多人根据自己的是非观反对出售武器. |
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