sound barrier

基本解释

English language has no simple sound-symbol correspondence system, which poses a major barrier in the vocabulary acquisition.
英语拼写与发音标识之间不存在一一对应关系，构成了英语词汇习得的一个主要障碍。
Starting with the invention of the bicycle, going on to sports cars, cars with jet engines, rocket-powered cars, attempts to break the sound barrier, and rocket-engine airplanes.
从发明自行车开始，一直到赛车，喷气发动机汽车，火箭动力汽车，尝试突破声障和火箭动力飞机。
The sound-barrier sufficiently uses the concave space of both sides of the railway which is used for communication cable, and designs based on distributed noise result of urban rail transit.
该声屏障充分利用了轨道床两侧架设通讯电缆的凹型空腔，并依据列车噪声分布进行了针对性设计。

In October, Felix Baumgartner broke the sound barrier in a 24-mile space jump, breaking the world record for the highest altitude skydive.
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It's also the place where Andy Green, a British fighter pilot, broke the land speed record in 1997 by driving a jet-powered car through the sound barrier to 763 mph.
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The limited space available inside a TV cabinet has been a barrier to good on-board TV sound for years.
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If an aircraft breaks the sound barrier, it reaches a speed that is faster than the speed of sound.