Expanding the supporting JAR files to the filesystem to create a flat structure can be quite time-consuming.
把JAR文件展开到文件系统以创建一个扁平结构，这可能非常耗时。
Libraries are expanding services that let patrons virtually 'check out' an e-book through the Internet, with e-book files that automatically lock down after the end of the loan period.
图书馆也扩展了服务，读者可以通过网络借阅电子书。借阅期到了之后，图书会自动锁定，无法阅读。
Aside from this minor annoyance, I quickly encountered two serious problems with expanding the supporting JAR files.
除了这个小麻烦之外，我很快又遇到了两个与展开支持JAR文件有关的严重问题。
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