我對此很認真。這是原則問題。

事實上，測不準原理是基本的。

他是節操高尚的人。

將功的定理稱為“能量定理”是會使人誤解的。

我對此很認真。這是原則問題。

【記】※ princ-prince王子,I-我,pl-拼音“怕了”:對王子設立的宮廷原則、規范我怕了 ※ prince-王子,I-我,pl-拼音“漂亮”,e-拼音“鵝”:王子的原則就是要我夸她的鵝漂亮 ※ principal-最重要的、校長,principle-原則:在學校最重要的原則就是校長的話(同音詞)

principle NOTE ON USAGE 用法: Note that principle is a noun relating to rules of behaviour 注意 principle是名詞, 指行為的規范 She leads her life according to Christian principles. 她以基督教教義作為生活的準則. Principal is a (rather formal) adjective meaning `main' or `most important' *principal是（較文的）形容詞, 意為｀主要的＇或｀最重要的＇ My principal concern is my family's welfare. 我至為關心的是我一家的幸福. the principal objections to the proposal 對該項建議的主要反對意見. As a noun it is used for the director of certain educational institutions (usually in further education) 該詞若用作名詞則指某些教育機構（通常屬繼續教育性質）之領導人 The principal and the vice-principal of the college both attended the meeting. 學院的正副院長均出席了會議. principle n 1 [C] basic general truth that underlies sth (eg a subject or a system of morality) 原理; 原則 a textbook which teaches the basic principles of geometry 講解幾何學基本原理的教科書 the principle of equality of opportunity for all 人人機會均等的原則 Discussing all these details will get us nowhere we must get back to first principles. 討論這些枝節問題是毫無用處的, 我們必須回到基本原則上來. 2 (a) [C usu pl 通常作復數] guiding rule for personal behaviour （行為的）準則, 規范 principles of conduct 行為的準則 live according to/up to one's principles 按自己的標準行事 She seems to have no principles at all (ie behaves immorally) when it is a question of making money. 一碰到賺錢的事, 她就好像完全不顧自己的人格了. It would be against my principles to lie to you. 對你說假話是違背我的行為準則的. (b) [U] these rules 操守; 道義; 為人之道 a woman of (high) principle 操守好的女人 He is quite without principle, ie behaves immorally. 他完全沒有道德觀念（做的事不道德）. It is a matter of principle with her to answer her children's questions honestly. 如實地答覆孩子們的詢問對她來說是關系到做人的大問題. 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; （機器等的）構造原理 These machines both work on the same principle. 這兩臺機器的工作原理是相同的. The system works on the principle that heat rises. 該項裝置是按照熱力上升的原理運轉的. =>Usage at principal 用法見principal. 4 (idm 習語) in principle (a) as far as basic principles are concerned 原則上 There's no reason in principle why people couldn't travel to Mars, ie It is possible, though it has not yet been done. 從理論上講, 沒有理由認為人不能到火星上去（盡管目前還做不到, 但卻是可能的）. (b) in general but not in detail大體上; 基本上 They have agreed to the proposal inprinciple but we still have to negotiate the terms. 他們基本上同意了那項提議, 但我們仍須商定條件. on principle because of one's (moral) principles or a fixed belief 依據自己的（道德）原則或所確定的信念 Many people are opposed to the sale of arms on principle. 許多人根據自己的是非觀反對出售武器.

prin(pre最先)+cip(拿)+le(小東西):最先需要拿住的小東西- 原則{四項基本原則}

*['prinsipl]n. 原則, 原理, 主義【化】 原理【醫】 原則, 原理, 成分, 要素, 物質【經】 原理, 原則相關詞組: in principle on principle on the principle of

原理，法則，成分