国民 (guómín) means "national," "citizen," or "the people of a country." It combines 国 (country) with 民 (people) and often appears in political contexts. A well-known usage is 国民党 (Kuomintang / Nationalist Party).
国民的健康水平反映了一个国家的发展程度。
Guómín de jiànkāng shuǐpíng fǎnyìngle yī gè guójiā de fāzhǎn chéngdù.
The health level of the citizens reflects the degree of development of a country.
政府应该关注国民的教育问题。
Zhèngfǔ yīnggāi guānzhù guómín de jiàoyù wèntí.
The government should pay attention to the education issues of its citizens.
提高国民收入是经济发展的重要目标。
Tígāo guómín shōurù shì jīngjì fāzhǎn de zhòngyào mùbiāo.
Raising national income is an important goal of economic development.