仅仅经过几小时的真实用户研究，问题的症结就找到了。

After only a couple of hours spent with actual users, the main problems were uncovered.

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即使是“专家”级别的可用性评估的效果也低于真实用户的。

Even 'expert' usability reviews are less effective than involving real users.

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搜索率先研究和测试，以证明使用此技术的优点的真实用户。

Search pioneered research and real user testing to prove the benefits of using this technique.

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So, ask yourself frankly especially when it comes to designing your own tools and your own programs whether it's for real users to use, whether it's for your research group to use in some other field, you know, where do you even begin?

坦白讲，问一问你们自己,当你设计一个工具，一个程序时,它是否是为真实用户使用的，还是为在其他领域的,研究团队使用的，你们懂的，你从哪里开始？

哈佛公开课 - 计算机科学课程节选