礼貌就像空气软垫一样：经管里边什么也没有，但它可以使我们减少颠簸。
Politeness is like an air cushions: There may be nothing in it, but it eases our jolts wonderfully.
在地中海上空两千英尺，阿利·塔利亚航空公司1618号航班因空气湍流的出现而上下颠簸。
Twenty thousand feet above the Mediterranean, Alitalia flight 1618 bounced in turbulence, causing passengers to shift nervously.
结果表明，高空急流区温度平流分布的不均匀性，会在急流附近等温线密集区边缘激发出空气垂直运动和湍流，引起飞机颠簸。
The results show that the inhomogeneous distribution of temperature advection in upper jet stream trigger vertical currents in the marginal area of upper jet stream and cause airplane turbulence.
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