self-evident
adjective uk/ˌselfˈev.ɪ.dənt/ us/ˌselfˈev.ə.dənt/
不证自明的；不言而喻的；显然的
clear or obvious without needing any proof or explanation
Solutions which seem self-evident to humans are often beyond the grasp of computers. 对人类来说一些显而易见的解决办法常常是计算机所不能做到的。