yí ge / kàn sì / jiǎn dān / de / wǎng luò / gōng néng / jīng guò / yòng hù / fǎn kuì / hòu / yǎn huà / chéng / le / wán zhěng / de / fú wù / tǐ xì一个看似简单的网络功能,经过用户反馈后衍化成了完整的服务体系。A seemingly simple online feature evolved into a complete service system after incorporating user feedback.