A dial on the back adjusts the width of the expandable seatback to fit a child's shoulders up to 20" wide. 11-position headrest adjusts up to 6.5" in height with one hand for an easy, precise fit.

背部座椅刻度盘调节展开式椅背至20英寸宽来满足孩子的肩部需要。11点定位头枕，可单手调节到6.5英寸的高度，轻松精确设置。

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One minute my head and neck are pressed back against the headrest, the next they jerk forward when the driver slams on the brakes.

这一会儿我的头和脖子还靠在座枕上，下一会儿就猛地向前冲—司机急刹车。

youdao

The chair reclines and has a padded headrest. It also has a touch-screen control panel and an electrical magnetic coil that is positioned on a precise spot on the patient's head.

病人坐在一张类似于牙医椅子的装置上，这把椅子有个斜靠的椅背以及填充的头枕，同时还有一个触屏式的控制面板以及一个可以精确的和患者的头部吻合的电磁圈。

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The pound-and-a-half weight of a current iPad sheds the tremendous amount of weight that would normally be needed for a conventional in-flight entertainment system built into the headrest, which on a typical 375-seat 767 could see the iPads pay for themselves within years, if not sooner.

ENGADGET: Qantas to hand out free iPads to all passengers on Boeing 767s, save fuel and our sanity (video)