the sound barrier
noun /ðə ˈsaʊnd bæriə(r)/
/ðə ˈsaʊnd bæriər/
[singular]- the point at which an aircraft’s speed is the same as the speed of sound, causing reduced control, a very loud noise (called a sonic boom) and various other effects
声障;音障 - to break the sound barrier (= to travel faster than the speed of sound)
突破声障(即速度超过声速)
- to break the sound barrier (= to travel faster than the speed of sound)