投机tóujīcongenial; agreeable; to speculate for profit; to act opportunisticallyHSK 7-9PronunciationtóujīExample sentence他辞掉工作,专门在股市里投机。Tā cí diào gōngzuò, zhuānmén zài gǔshì lǐ tóujī.He quit his job to speculate in the stock market full-time.Read and choose an answerOne fixed sampleExplore a sample