1. 副词是修饰动词、形容词或其他副词的词。
2. adv.是adverb的缩写，表示“副词”的意思。
3. 常见的adv有：
4. 时间副词：now, then, often, always, sometimes, rarely, never, before, after, etc. 5. 地点副词：here, there, everywhere, anywhere, etc. 6. 方式副词：well, fast, carefully, loudly, etc. 7. 程度副词：very, quite, so, too, etc. 8. 疑问副词：how, when, where, why, etc. 9. 关系副词：which, who, whose, etc. 10. 连接副词：therefore, however, moreover, etc.
