用外掛程式，擴增無限可能。
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helpful
4 外掛程式
Was This Helpful?Simple article feedback plugin. find out if the information you provided is helpful to visitors and improve the user experience.
Helpful - Article Feedback PluginEasily add a "Was it helpful?" survey on your blog or knowledge base pages with this article feedback plugin.
Was This Helpful? – Article FeedbackWas this helpful? plugin for WordPress adds a thumbs up/down box to collect quick article feedback on posts and pages.
That Was HelpfulFind out what posts logged-in users found helpful.