perfect: implies the soundness and the excellence of every part, element, or quality of a thing, frequently as an unattainable or theoretical state: a ~ set of teeth.   （sound表示健康时emphasizes the absence of illness, weakness, or malfunction强调没有疾病虚弱异常，如an examination showed his heart to be sound体检显示他心脏健康；表示合理时implies a basis of flawless reasoning or solid grounds指具有无瑕的推理，坚实的基础，如a sound proposal for combating terrorism打击恐怖主义的合理建议；都表示"好"，这里可以将sound译为完好）  theory理论，用于解释事物的原理principles，通常独立于被解释的事物a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained，如相对论进化论


whole: suggests a completeness or perfection that can be sought and attained or lost and regained: an experience that made him feel a ~ man again.  例句很常用


entire: implies perfection deriving from the integrity, soundness, or completeness: recorded the ~ Beethoven corpus.   （integrity完整being whole and undivided，如upholding territorial integrity and national sovereignty维护领土完整和国家主权，如integer整数、integral积分和微分相对）         corpus语料库a large collection of written or spoken texts


intact: implies retention of an original or natural perfection that might easily have been lost: somehow the building survived the storm ~.   retain保留维持，指在有被夺走丧失的风险的情况下得以保留，如保留尊严dignity、政府控制权control of the government，古香古色old world character.


perfect完美: 指处处完好优越，常表示理论的、达不到的状态，whole完整: 表示这种完整可以寻求后获得，失去后重获，entire完全: 指完整完全，intact完好无损: 表示在容易丧失的情况下得以保存


记忆方法: 1）首字母PWEI想成我们WE + 知识产权Intellectual Property<==完整知识产权

         2）完整的意思是没有残缺mean not lacking or faulty in any respect.