| 释义 |
the sound barrierBrE /ðə ˈsaʊnd bæriə(r)/ NAmE /ðə ˈsaʊnd bæriər/ noun [sing. ]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） |