The noun 总理 (zǒnglǐ) means "prime minister" or "premier" and is used to refer to the head of government in countries that have a parliamentary system. In China, it specifically refers to the Premier of the State Council, the head of the central government.
总理在新闻发布会上回答了记者的提问。
zǒnglǐ zài xīnwén fābù huì shàng huídá le jìzhě de tíwèn.
The prime minister answered reporters' questions at the press conference.
英国总理下周将访问日本。
yīngguó zǒnglǐ xià zhōu jiāng fǎngwèn rìběn.
The British prime minister will visit Japan next week.
新任总理承诺将推动经济改革。
xīnrèn zǒnglǐ chéngnuò jiāng tuīdòng jīngjì gǎigé.
The new prime minister promised to promote economic reform.