pǔ jí
健身操已普及全国。
jiànshēncāo yǐ pǔjí quánguó
aerobics has spread throughout the country
普及卫生常识
pǔjí wèishēng chángshí
popularize hygiene knowledge; spread health and sanitation awareness
在普及的基础上提高。
Zài pǔjí de jīchǔ shàng tígāo.
Improve on the basis of popularization.