hěn duō / yìng yòng / shāng diàn / dōu / tí gōng / shì wán bǎn / ràng / yòng hù / tǐ yàn / hòu / zài / xià zài / zhèng shì bǎn

很多应用商店都提供试玩版，让用户体验后再下载正式版。

Many app stores offer trial versions so users can experience before downloading the official version.