短语词组短语expandable paper 伸性纸expandable hashing 可扩充散列Expandable Banner 可伸展横幅expandable ad 扩展式广告Expandable Legs 伸缩脚架expandable enclosure 伸缩围栏Expandable Memory 扩充内存expandable solution 可扩充解决方案expandable packer 扩张式封隔器 返回 expandable