例句與造句

1. The development of artificial echo / reverberation chambers was important for sound recording because of the limitations of early recording systems.
2. Developments in electronics in the early 20th century specifically the invention of the amplifier and the microphone led to the creation of the first artificial echo chambers, built for radio and recording studios.
3. It's difficult to find artificial echo in a sentence. 用artificial echo造句挺難的