Hanzhong Xianhao is a tea expansion sentence.

Does the subject want to ask "what is the extended sentence of Hanzhong Xianhao Tea"? Hanzhong Xianhao is a kind of tea with health preserving function. An extended sentence is one or more adjectives added to the original sentence. As the name implies, sentence expansion, also called writing expansion, is just the antonym of abbreviation. It adds branches and leaves to the trunk, that is, according to the needs of expression, it adds joint elements such as attributes, adverbials and complements to make the meaning of sentences or chapters more specific and substantial.