What they do know, though, is that technology aimed at improving safety does not always have the intended effect.

然而，他们可以肯定的是提高安全性能的技术并非全部都能收到预期的效果。

youdao

It is not functional; clicking on the buttons or making selections in the lists does not have any effect on what is displayed.

它是非功能性的；单击按钮或在列表中进行选择都不会对所显示内容有任何影响。

youdao

What seems to be happening is that cognitive stimulation helps overcome the effect of the neurodegenerative lesions associated with dementia.It does not, however, make them go away.

真实的情况看来是认知激发有助于克服退行性神经损害与痴呆相关的的影响，然而却不能将其消除。

youdao

It does not say what effect this has on relationships or important activities, such as sleep.

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In effect what you are suggesting is that they take permanent responsibility for someone who is uncooperative and does not welcome their help.

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