To interact with a computer solely by voice is much more difficult work t than using various hardware input devices and monitoring the computer state with visual feedback.

只通过语音与计算机交互相比起使用各种硬件输入设备和利用可视反馈监视计算机状态来说，是一项更为艰难的工作。

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The functional programming approach is easy to understand, but can be difficult to apply if you are used to the more procedural and state-focused imperative languages.

函数编程方式很容易理解，但是如果您习惯了过程序和关注状态的命令式语言，可能不太容易适应它。

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Especially, when they learn the knowledge about sinusoidal steady -state circuit analysis, they feel more difficult.

特别是学到正弦稳态电路分析内容时，更是如堕五里云雾中。

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The Labour government faces a more difficult task in completing its reform of the welfare state in its second term of office.

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While including a ban in the constitution would make it more difficult to overturn than the existing law, one state legislator said changing times would eventually undermine the measure.

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Less regulation at the federal level could lead to more regulation at the state level, creating a labyrinth of rules that businesses could find very difficult to navigate.

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