京都
The noun 京都 (jīngdū) means "capital city" in classical and literary Chinese. It refers to the capital of a country or state, particularly in historical contexts. Note that in modern Chinese, 首都 (shǒudū) is the more common term for "capital city."
古代的京都通常是全国最繁华的地方。
Gǔdài de jīngdū tōngcháng shì quánguó zuì fánhuá de dìfang.
In ancient times, the capital was usually the most prosperous place in the whole country.
那时候的京都人口已经超过百万了。
Nà shíhou de jīngdū rénkǒu yǐjīng chāoguò bǎi wàn le.
At that time, the capital already had a population exceeding one million.
皇帝决定把京都迁到北方去。
Huángdì juédìng bǎ jīngdū qiān dào běifāng qù.
The emperor decided to move the capital to the north.