untarnished

adj.

未失去光泽的；未受玷污的；

1. From a sky of untarnished blue the sun beamed down upon Beijing.
   阳光透过万里碧空照耀着北京城。

Untarnished Reputation
Your words untarnished
American silver: untarnished prospects?
Mendel's legacy remains untarnished
Taranis Returns Untarnished to Boost Nicholls' Gold Claim
“Untarnished Purity”: Ethics, Agency, and the Victorian Fallen Woman
McClain Untarnished: The NSPA Shines through the Phiale Controversy
Shine is off CEOs, but pay still untarnished
Around the Bloc: Kyiv Taps Untarnished Youth for Key Roles
Contact resistance, adhesion and wear of tarnished and untarnished silver subjected to an oscillating friction load