speechifyv.演说；长篇大论地说个不完；喋喋不休地说speechn.演说；演讲；言语；语言能力speech recognitionn.语音识别speech synthesizer语音合成器speech power level话音功率电平speech coprocessor语音协处理器speech compression言语压缩speech and silence言说与沉默speech and hearing语言和听力, 言语和听觉speech control car声控汽车speech plus duplex话路加双工电报speech and writing口语与写作