Acousticians
n. [声] 声学家
🗣️ 情景例句
No problem.
没问题。
This nation is noted for its economic stability.
这个国家以经济稳定闻名。
Sparks were emitted from small black boxes and red lamps flashed on and off angrily.
小黑盒子里迸出火花，红色灯泡发怒似地忽明忽暗。