一尘不染 (yī chén bù rǎn) — spotless, extremely clean (of a place); incorruptible, morally pure (of a person)

Definition

Examples

• 她把厨房擦得一尘不染，像新的一样。
  Tā bǎ chú fáng cā dé yī chén bù rǎn, xiàng xīn de yí yàng.
  She wiped the kitchen spotless, like new.
• 这位官员一生一尘不染，深受人民爱戴。
  Zhè wèi guān yuán yì shēng yī chén bù rǎn, shēn shòu rén mín ài dài.
  This official was incorruptible all his life and deeply loved by the people.
• 他的办公室虽然不大，但一尘不染。
  Tā de bàn gōng shì suī rán bú dà, dàn yī chén bù rǎn.
  His office is small but spotless.