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1. 未受污染的：unsubstantial 不现实的 | unsullied 未受污染的 | unsure 缺乏信心的

2. 清白的：unsuited 不适合的 | unsullied 清白的 | unsung 未赞颂的

3. 未受玷污的：unsulfatedcement 未加石膏的水泥 | unsullied 未受玷污的 | unsulphitedextract 未亚硫酸化栲胶

4. 无污点的/清白的：unsuitable /不适合的/不便/不当/ | unsullied /无污点的/清白的/ | unsung /未被唱的/未在诗歌受歌颂的/未赞颂的/

1. 未受污染的;未受玷污的;清白的
    If something is unsullied, it has not been spoiled or made less pure by the addition of something unpleasant or unacceptable.

    e.g. She had the combined talents of toughness, intellect, experience and unsullied reputation...
           她刚强果敢、才智超群、经验丰富，而且名声没有任何污点。
    e.g. He smiled, unsullied by doubt.
           他虽疑惑但还是笑了笑。

1. (of reputation) free from blemishes

    e.g. his unsullied name
           an untarnished reputation

    Synonym: stainlessunstaineduntainteduntarnished

2. spotlessly clean and fresh

    e.g. the unsullied snow of mountains