楼主，楼上，楼下，几楼在英语里怎么说 some expressions on the forum 在论坛里，我们使用的楼主，楼上，楼下，几楼，在英语中如何表达？ On the forum, we use 楼主 to express one who posts a thread, 楼下 to express one who posts before another one in the thread, 楼下 to express one who posts after another one, and number + 楼 to express which one who posts here. So could you help me to figure out the brief expression way here?