| 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） |