双折门钱包 ; 两折式皮夹 ; 对折钱包
双折门
双折卡片夹
There are no locks on the small bi-fold doors, but engineers left a piece of Velcro on the outside wall so astronauts can name their rooms.
BBC: A space of one's own
The solution is simple and bi-fold.
FORBES: How Bernanke Ruined The Stock Market's Week
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。