There is no evidence that Airwave users suffer illness or any ill effects as a result of using their radios.
还没有证据显示空中电波公司的客户由于使用了他们的无线电设备而患病和出现不良反应。
"Observing users suffer during our... sessions reminded us of the very first usability studies we did with traditional websites in 1994," Nielsen told USA Today.
Nielsen对《今日美国》说:“在测试期间眼看着用户受罪……让我们想起我们1994年对传统网站进行的可用性研究。”
This is the same problem that I believe many new vertical search engines suffer from - there is not enough incentive for users to tell their friends about the service, even if it is a great product.
其实对于很多垂直搜索引擎来说,都面临着同样一个问题:无法给用户激情让其将这个服务告诉别人,即便这些服务已经十分完美。
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