The new airplane flies twice the speed of sound.

这架新飞机的飞行速度是音速的两倍。

youdao

The aeroplane will travel at twice the speed of sound.

飞机将以两倍于音速的速度飞行。

《柯林斯英汉双解大词典》

The new airplane flies at twice the speed of sound.

这架新式飞机以两倍于音速的速度飞行。

《新英汉大辞典》

The first plane ever to fly faster than the speed of sound was the X-1 in nineteen forty-seven.

VOA: special.2010.07.07

It would reach hypersonic speeds -- five times the speed of sound.

VOA: special.2010.07.07

It was flying more than five times the speed of sound.

VOA: special.2010.07.07

Imagine 33 large pick-up trucks hurling towards you at five times the speed of sound.

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Austrian Felix Baumgartner became the first skydiver to go faster than the speed of sound.

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The nylon parachute 70 feet in diameter will slow the craft to just under the speed of sound.

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