Walking at comfortable speed improves the efficiency of the cardiorespiratory system by stimulating the lungs and heart, but at a more gradual rate than most other forms of exercise.

在舒适的步行速度提高了效率，心肺系统的刺激肺及心脏，但更逐步率比大多数其他形式的活动。

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Why not take the high-speed railway? It's fast and comfortable.

为什么不坐高铁呢？又快又舒服。

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There is more space in the high-speed train and the journey becomes more comfortable.

高铁有更多的空间，旅行也会变得更舒适。

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The unique Logitech concave key design gives you more comfortable and quiet typing, and offers more speed and precision than typing on an on-screen keyboard.

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Goodrich's speed allowed the Jayhawks to push the pace much faster than the Gamecocks found comfortable.

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In 2005 Lankford ditched a comfortable salary, hired away an engineer from Reuters and went hunting for consulting gigs optimizing speed performance for trading firms and hardware vendors.

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