population quality的用法和樣例：
例句
- Providing good education is important for improving population caliber.
優(yōu)教是提高人口素質(zhì)的重要措施。 - We should improve prenatal and postnatal care and foster physical fitness among the population.
我們要加強優(yōu)生優(yōu)育工作，通過(guò)人口素質(zhì)。 - We should continue to control population growth and improve the quality of the population.
要堅持控制人口增長(cháng)，提高人口質(zhì)量。
