Sound barrier
音障
📖 牛津释义
sound barrier
(also sonic barrier), point at which an aircraft's speed equals that of sound waves, causing sonic booms 声障; 音障
break the sound barrier, ie move faster than the speed of sound 突破声障（即以超声速飞行）.
🧩 词语组成解析
sound
[saʊnd]
n. 声音，声响;音调，声调;声波;嘈杂声;
vi. 响，发声;听起来，好像;回响;[音乐]乐器等被奏响;
vt. 使出声，使发声;清楚地发出;宣布，发表;颂扬;
adj. 健全的;合理的;完好的，无损的;明智的;
adv. 彻底地，充分地;
🗣️ 情景例句
Where's the bag with the chicken salad sandwiches?
放鸡肉沙拉三明治的袋子在哪？
He is unfortunate who cannot bear misfortune.
不能承受不幸的就是不幸。
He is respectful to his elders.
他对长辈很恭敬。