Ever since I can remember I have spent the evening in draughty halls, church
halls, community centres, town halls or huts "converted for the evening into
halls" and sat on hard wooden seats watching other people trying to make me
believe that they are different people.
"converted for the evening into halls" 这一段的意思

临时改装成大厅的小屋for the evening 只是为了当晚改建