1.(law)anexplanationofthefundamentalreasons(especiallyanexplanationoftheworkingofsomedeviceintermsoflawsofnature)
e.g.therationaleforcapitalpunishmenttheprinciplesofinternal-combustionengines
Synonym:rationale
2.abasictruthorlaworassumption
e.g.theprinciplesofdemocracy
3.aruleorlawconcerninganaturalphenomenonorthefunctionofacomplexsystem
e.g.theprincipleoftheconservationofmasstheprincipleofjetpropulsiontheright-handruleforinductivefields
Synonym:rule
4.abasicgeneralizationthatisacceptedastrueandthatcanbeusedasabasisforreasoningorconduct
e.g.theirprinciplesofcompositioncharacterizedalltheirworks
5.aruleorstandardespeciallyofgoodbehavior
e.g.amanofprinciplehewillnotviolatehisprinciples
6.ruleofpersonalconduct
Synonym:precept
1.道德原则；行为准则；操守Aprincipleisageneralbeliefthatyouhaveaboutthewayyoushouldbehave,whichinfluencesyourbehaviour.
e.g.Buckneverallowedhimselftobebulliedintodoinganythingthatwentagainsthisprinciples...巴克从来不会因为受到威胁而做违背自己原则的事情。e.g....moralprinciples...道德准则
2.法则；原则；原理Theprinciplesofaparticulartheoryorphilosophyareitsbasicrulesorlaws.
e.g....aviolationofthebasicprinciplesofMarxism...违背马克思主义的基本原则e.g.Thedoctrinewasbasedonthreefundamentalprinciples.这个学说建立在三条基本原理之上。
3.（科学）原理，定律Scientificprinciplesaregeneralscientificlawswhichexplainhowsomethinghappensorworks.
e.g.Thesepeoplelackallunderstandingofscientificprinciples.这些人对科学原理一窍不通。e.g....theprinciplesofquantumtheory.量子论原理
4.大体上；基本上Ifyouagreewithsomethinginprinciple,youagreeingeneraltermstotheideaofit,althoughyoudonotyetknowthedetailsorknowifitwillbepossible.
e.g.IagreewithitinprinciplebutIdoubtifitwillhappeninpractice.我大体上同意这一点，但是怀疑它是否能够付诸实践。
5.从理论上说；按道理Ifsomethingispossibleinprinciple,thereisnoknownreasonwhyitshouldnothappen,eventhoughithasnothappenedbefore.
e.g.Evenassumingthistobeinprinciplepossible,itwillnotbeachievedsoon.即使假定这在理论上行得通，它也不可能于短期内实现。
6.按照原则；根据信念Ifyourefusetodosomethingonprinciple,yourefusetodoitbecauseofaparticularbeliefthatyouhave.
e.g.Hewouldvoteagainstitonprinciple...他会根据原则投反对票。e.g.Hisfather,onprinciple,didnotliketohearrequestsformoney.从原则上来说，他父亲不喜欢别人借钱。
1.principle在线翻译
1.原理;原则：在学术界,研究者在某些证据下,提出假设或学说(hypothesis),经过一再验证,发展成理论(theory),在经反复推敲、考验,最后形成定理(rule)、定律(law)或原理原则(principle).