verb, adverb · to make something clear or understandable through words or illustrations

请向大家说明一下这个项目的进展情况。

noun, verb · a statement or text that explains; directions or a caption

他仔细阅读了说明书上的使用说明。

verb · to show, prove, or serve as evidence of something

数据说明，今年的销售额有所增长。