the KISS principle
noun /ðə ˈkɪs prɪnsəpl/
/ðə ˈkɪs prɪnsəpl/
[singular] (especially North American English)- the idea that products and advertising should be as simple as possible
(产品与广告的)最简原则,单纯原则 词源Formed from the first letters of the expression ‘Keep it simple, stupid’.