that can be found and made available to be used; that can be got back

Even deleted computer files are retrievable for those who know how and where to look. 即使是被删除的电脑文件，只要知道如何查找和去哪里查找，也是可以找回的。

Records should be maintained in an easily manageable and retrievable format. 记录应该以易于管理和检索的格式保存。

The fund has about $200 billion in easily retrievable assets. 该基金拥有大约2000亿美元的易于兑现资产。

that can be improved

The situation for the British team is retrievable - although winning two of their three remaining matches is not an easy task. 英国队的局面是可以挽回的——尽管赢得剩下三场比赛中的两场并非易事。