With the improvement of the level of medical care, people's life expectancy has begun to extend significantly, and the increase in life expectancy will inevitably bring some effects.
As the level of health care increases, people's life expectancy begins to increase significantly, and with the increase in life expectancy, there is bound to be some impact.
With the improvement of the level of medical care, people's life began to significantly extend, and with the growth of life, it is bound to bring some impact.<br>