无干 wúgān to have nothing to do with Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 深度工作需要长时间无干扰的思考。 shēndù gōngzuò xūyào chángshíjiān wú gānrǎo de sīkǎo. Deep work requires long periods of uninterrupted thinking. Source: CCMatrix