词汇：inaudible

adj. 听不见的；不可闻的

相关场景

Forrest's amplified voice becomes inaudible. Forrest continues to speak into the microphone, even though no one can hear what he is saying. Hilary looks over and notices the policeman. Hilary rushes over toward the audio board, pushes the policeman away and grabs his night stick. Another protester grabs the policeman and pulls him away.

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