世界那么大，The world is yours, listen before it's too late! 再不听听就晚了！ 世界没了声音将会怎样？ What if there was no sound? 听觉感知世界声音表达思想Auditory sense perceives the world sound expresses thought 用技术传播声音 100多年前 人类 第一次 Spreading sound by technology 电声技术渗透性很强The permeability of ElectroAcoustic technology is strong, and applies to various areas 广泛适用于 你或许知道