消费合同不完全履行的问题；
任何一方不履行或不完全履行本协议所约定义务的，应当依法承担违约责任。
Either party who fails to perform or under-performs their obligations hereunder will be liable for breach of contract.
通过比较分析，笔者认为大陆法系的瑕疵担保制度并不完善，采用不完全履行制度更为合理。
By comparing and analyzing, I believe that warranty of defect in continental law is imperfect, it's more reasonable to adopt the system of incomplete performance.
任何一方对自然灾害及其他不可抗力原因造成的义务迟延履行，不完全履行或不履行均不应视为违约。
Any party to natural disasters and other force majeure causes of delay in performance of duty, incomplete or non-performance should not be treated as breach of contract.
履行不能是大陆法系债法上的重要概念，与迟延履行、不完全履行共同构成债务不履行的三大形态，是契约法上的核心问题之一。
Impossibility of performance, an important concept in the law of obligation in the Continent law System, is one of core questions in contract law.
履行不能是大陆法系债法上的重要概念，与迟延履行、不完全履行共同构成债务不履行的三大形态，是契约法上的核心问题之一。
Impossibility of performance, an important concept in the law of obligation in the Continent law System, is one of core questions in contract law.
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