speeches言语
speechn.演说;演讲;言语;语言能力
speech in English演讲英语
speech psychology言语心理学
speech of welcome欢迎词
speech strategies言语策略
Speech enhacement语音增强
speech and duplex话音-双工通道
speech conversion语音转换
speech monitoring言语监控
speech act theory言语行为理论
speech extraction语音提取