?定义文件夹数据块
3、 定义文件夹数据块（folder block）：持续属性类BLOCK （1） 触发器：
?页面折迭块
... 文件库，卷宗 folder 页面折迭块 folder block 页面折迭目录 folder directory ...
Apple is fashion, and its iPad fits snuggly as the cyber-purse or folder that can be clearly seen from a block away making a thunderous cyber-fashion statement.
FORBES: Apple Web Store iPad Shipment Delays Rise To 3-4 Weeks
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。