pristine
/ˈprɪstaɪn/adjective
1- in its original condition; unspoilt本来的, 原本的; 未受破坏的：
pristine copies of an early magazine.
早期杂志的原版。
1.1
- clean and fresh as if new; spotless新鲜的, 干净的; 崭新的; 一尘不染的：
a pristine white shirt.
一尘不染的白衬衣。
词源
mid 16th cent. （in the sense 'original， former， primitive and undeveloped'）： from Latin pristinus 'former'. The senses 'unspoilt' and 'spotless' date from the 1920s.