改进gǎijìnto improve; to make betterHSK 5PronunciationgǎijìnExample sentence我们需要改进产品的质量。Wǒmen xūyào gǎijìn chǎnpǐn de zhìliàng.We need to improve the quality of the product.Read and choose an answerOne fixed sampleExplore a sample