Sonic barrier
音障
📖 牛津释义
sonic barrier
= sound barrier (sound).
🧩 词语组成解析
sonic
[['sɔnik]]
a. 音波的, 音速的, 声音的\\n[电] 音波
🗣️ 情景例句
Maybe you can photogragh a class,
也许你来拍一次上课的情形，
She was so happy that she shed tears of delight.
她因为太幸福了，所以喜极而泣。
I decided that I must have taken a wrong turning somewhere.
我想一定是什么地方拐错了弯儿。