Compact discs have brought about a vast improvement in recorded sound quality.激光唱片极大地提高了录音的音质。Clean drinking water has greatly improved the villagers' quality of life.干净的饮用水极大地提高了村民们的生活质量。Getting the money upfront will improve our cash flow significantly.得到预付款可以极大地提高我们的现金流转速度。