In a telephone circuit controlled by an echo-suppressor,the inability of one or both subscribers to get through because of either excessive local circuit noise or continuous speech from one subscriber.是什么意思_In a telephone circuit controlled by an echo-suppressor,the inability of one or both subscribers to get through because of either excessive local circuit noise or continuous speech from one subscriber.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句