Remove the seat back from the seat cushion and place it on a suitable work surface.

将座位靠背从座位垫上拆下，并将其放至适当的工作台上。

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A cushion attached to the top of the back of an automotive vehicle's seat, especially to prevent whiplash.

一个附在汽车座位后背顶端的垫子，可用来防止脖子扭伤。

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When you are sitting or driving for long periods of time, place a cushion or rolled-up towel between the curve of your lower spine and the back of your seat.

当你需要坐很久或者开车很久时，应该用垫子或卷起的毛巾垫在脊柱尾部曲线和座椅靠背的空隙之间。

youdao

The central aisle of an airliner, the back seat of a car (stale popcorn crammed into cushion cracks), a coal mine, a hospital waiting room, a long tunnel in which a hot breeze blew first in one direction and then the other.

NEWYORKER: Ziggurat