It is crucial that the upper back and neck are held in an erect position to give support for the head.

重要的是：上背和颈部要挺直以支撑头部，这一点很重要。

《柯林斯英汉双解大词典》

The neck of four footed animals is usually long, to have them reach their food without difficulty, but the elephant has a short neck, to make him more easily support the weight of his huge head and heavy teeth.

四足动物的脖子通常很长，这样它们就可以毫不费力地够到食物，但是大象的脖子很短，这样它就可以更容易地支撑它巨大的头和沉重的牙齿的重量。

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Advantages: Last 15 to 20 years; offer significant support for head and neck; resistant to dust mites.

优点：能使用15至20年；对头部和颈部支撑性好；防尘螨。

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The fourth video in the series will be released this Thursday, August 30, and will explain how in 2001 NASCAR mandated use of the HANS (Head and Neck Support) device after 4 basilar skull fractures, including one which killed Dale Earnhardt Sr.

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Stcherbina, now wearing a specially-made neck, chest and head support, will continue his recovery in Bristol.

BBC: Injured Stcherbina to return home

Cmdr Hadfield added that upon his return to Earth he noticed the weight of his tongue and lips and was remembering how to speak under the force of gravity, while his neck and back felt sore from having to support his head again.

BBC: Chris Hadfield: 'Space was too good not to share it'