“副词”是一种词，它常常放在动词或形容词前面，用来说明时间、程度、地方等等。

An "副词" is a type of word that often appears before verbs or adjectives to indicate time, degree, place, etc.

比如“很”、“非常”、“已经”都是副词。

For example, "很", "非常", and "已经" are all 副词.