有时 还可用在非正式谈话或是商务口语当中。比如你想提醒同事明天九点 开会,你就可以说:FYI, meeting's at 9 tomorrow. 3、ASAP as soon as possible 意思是尽快。常用在邮件里。 例句: Please revise and resend to us ASAP, thanks! 请尽快修改后重新发给我们,谢谢! 4、BYOB bring your own beer/booze 自带酒水。 例句:  Since beer in the US is expensive, we go to bring your own bottle (BYOB) parties, play games and get all crazy. 因为啤酒在美国很贵,我们会自己带酒水聚会,玩游戏,尽情狂欢。 5、RIP 拉丁文 Requiescat in Peace 每当国外有名人偶像去世,国外社交网站上会看到无数 RIP 的评论。