stainless
adjective uk/ˈsteɪn.ləs/ us/ˈsteɪn.ləs/
(MATERIAL)
没有污迹的;不生锈的
with no marks on it, or made of a substance that is not damaged by air or water and that does not change colour
stainless work surfaces 一尘不染的工作台面
(PERSON)
道德高尚的;没做过错事的
morally good; having done nothing that could be considered to be wrong
He was a man of stainless character. 他是一个情操高尚的人。