A sonic boom is the thunder-like noise a person on the ground hears when an aircraft or other type of aerospace vehicle flies overhead faster than the speed of sound or supersonic.
音爆是当飞机或其它类型的飞行器以超音速飞过头顶时，地面上的人听到的类似雷声的噪音。
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The lateral spreading of the sonic boom depends only upon altitude, speed and the atmosphere -- and is independent of the vehicle's shape, size, and weight.
音爆的横向伸展取决于高度、速度和大气，而跟飞行器的形状、大小和重量无关。
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A sonic boom is the loud crash and shaking that happens when a jet plane goes faster than the speed of sound.