要加上 gap between folded-down rear seat and back of front seat 才夠長。怎麽擺平這個gap? 氣墊床底下有空要什麽撐著才行吧?
http://www.subaruforester.org/vbulletin/attachments/f139/33550d1320882241-sleeping-back-merged-thread-bed-1.jpg