1.Originally created by Phil Katz for the shareware program PKZIP, ZIP is a speedy, reliable, and open-specification compression format.
ZIP最初是由PhilKatz为共享件程序PKZIP创建的，ZIP是一种快速、可靠且遵循开放规范的压缩格式。
2.Today's Microsoft Office documents are PKZIP-compatible files containing multiple XML documents.
现在的MicrosoftOffice文件是PKZIP兼容的，含有多个XML文档。
3.Apache distributions are stored in compressed tar archives or using pkzip.
Apache发行版是存储在用tar或pkzip压缩的文件中的。
4.Using tar is very much like using a file utility, such as PKZip.
使用tar非常类似于使用诸如PKZip这样的文件实用工具。