气垫的英文：
air bed; air cushion; air spring

参考例句：

A hovercraft rides on a cushion of air.
气垫船悬浮在气垫上行驶.

Layer of air supporting eg a hovercraft
气垫(支撑如气垫船的空气层).

An airtight inflatable pad used as or on a bed or as a cushion.
气垫充气垫子，用作床或放在床上

Wearing this brand of air-cushion sports shoes, you will feel that your feet are highly resilient.
穿这种气垫运动鞋，您的双脚会富有弹性。

Inflate the Therm-a-Rest mattress by mouth as hard as possible, then quickly close the valve.
用嘴吹气垫使之尽可能膨胀到最坚硬，然后立即关闭阀门。

Politeness is like an air cushion; there may be nothing in it, but it eases our jolts wonderfully. ——Samuel Johnson
礼貌像只气垫:里面可能什么东西也没有，却能奇妙地减轻我们所受的颠簸。——约翰逊

The hovercraft has an advantage over the aeroplane in that the hovercraft can move straight upwards like a helicopter.
气垫飞行器优于飞机的地方是它能像直升飞机那样直上飞行。

air是什么意思：
n. 空气；大气；天空；空间；微风；样子；神态；气氛
v. 晾；通风；广播

There was not a breath in the air.
一丝风也没有。

a nip in the air
空气中有一种刺肤的寒冷

To fish in the air
海底捞月

bed是什么意思：
n. 床，睡眠处；睡觉；（海、河、湖等的）底部；苗床
v. 把...安置在；为…提供住宿（床位）；睡，卧

Procrustean bed
逼人就范之物

Bed rest is more like bed agony.
上床睡觉好象是种苦恼。

It has bedded into the deepest crevices of the store.
它已钻进了店里最隐避的隙缝。

cushion是什么意思：
n. 垫子，靠垫；垫状物；缓冲器；减震垫
v. 加垫褥，放在垫子上；缓和...的冲击

The chairs are cushioned.
椅子装有褥垫。

Pad the cushion with wool, please.
请将羊毛装入褥垫。

She plumped the cushions.
她将垫子拍拍松。