vital energies

例句：

1. 1. The health of the population is a vital factor in economic growth.
   人口健康是经济增长的一个关键因素。
2. 2. Vital statistics are used to track the health and well-being of populations.
   生命统计用于追踪人口的健康和福祉。
3. 3. The researcher found that vitamins were vital for maintaining good health.
   研究人员发现，维生素对于保持健康至关重要。