time word, expression

这种花只在夏、秋两个季节开放。

proper name, time word · The Xia (or Hsia) dynasty, traditionally considered the first dynasty of China (c. 2000 BC).

作为中国首个王朝，夏的历史极其久远。

proper name · A common Chinese surname.

夏老师这学期教我们中文。

time word · A state during the Sixteen Kingdoms period (407–432 AD), also known as Hu Xia.

他在历史书中读到了有关十六国中夏的内容。