网友收藏B4的完整形式是什么?-CSDN博客文章浏览阅读599次。B4:之前 (B4: Before)B4 is an abbreviation of "Before". B4是“ Before”的缩写 。 It is an expression, which is commonly used in messaging or chatting on social media networking sites like Facebook, Yahoo Me..._b4完整形式... 2024-01-21 12:00 评论 0 阅读 阅读全文