Synthesis and generated signals of the air do not use coal, until it from the loudspeaker released from the air only needed the help, but We have enough good reasons not always do so directly.是什么意思_Synthesis and generated signals of the air do not use coal, until it from the loudspeaker released from the air only needed the help, but We have enough good reasons not always do so directly.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句