software that is available free of charge; may be distributed for evaluation with a fee requested for additional features or a manual etc.
shareware详细解释
share.ware n.（名词）Copyrighted software that is available free of charge on a trial basis, usually with the condition that users pay a fee for continued use and support.共有软件：可免费试用的受版权保护的软件，若继续使用及获得支持，使用者通常要付费 来源：share share (soft)ware(soft)ware
