求翻译：还有“BMW族”网友总结出经验之谈，“要和站台维持秩序的老大爷搞好关系，关键时刻他会助你一臂之力。”“在西直门换乘各位要做好长途急行军的准备”“约朋友见面一定要避开西直门和公主坟这两个地铁站，否则后果自负”……这些经验之谈充满真知灼见，而且诙谐幽默，它们出自在坊间流传很广的《北京地铁生存手册》、《地铁挤车秘籍》、《地铁指南》等网上热帖，而它们的作者和追捧者都是“BMW族”，他们还票选出“最舒服的地铁线路”、“最长的换乘站”，“最崩溃的地铁迷宫”……是什么意思？

There are "BMW" online conclusion thumb, "the old man a good relationship and platform to maintain order, critical moment he will help you maximize. "" In the xizhimen transfer to prepare members for long forced March "" about friends must avoid xizhimen and Princess graves of the two subway stations, or at your own risk "sth These thumb full insight, and humorous humor, they from in anecdotal spread is wide of Beijing Metro survival manual under, and Metro crowded car cheats under, and Metro Guide under, online hot posts, and they of author and sought after who are is "BMW family", they also votes elected "most comfortable of Metro line", and "most long of transfer station", "most crash of Metro maze" sth sth