科研kēyánscientific researchHSK 5PronunciationkēyánExample sentence他一生致力于科研工作,取得了许多重要成果。tā yīshēng zhìlì yú kēyán gōngzuò, qǔdé le xǔduō zhòngyào chéngguǒ.He devoted his life to scientific research and achieved many important results.Read and choose an answerOne fixed sampleExplore a sample