单词	back echo
释义	back echo [电] 反回波
随便看	soft-pitch soft place in one's heart soft plantation white sugar soft-plastic soft plastic bottle soft plastics soft-plastics soft play centre soft plug softplus soft point soft polymetric material soft polyvinyl chloride pipe soft porcelain soft pork soft-porn soft porn soft-porns soft position soft potash soap soft powdery lime soft-power soft power soft pretzel soft pretzels 白发死章句白发渐白发潘郎宽沈带白发空垂三千丈白发簪花不解愁白发老书生白发老农如鹤立白发老闲事白发西风白发见生涯詰め寄る詰め将棋詰め所詰め掛ける詰め物詰め腹詰め襟詰め込みしゅぎ詰め込み主義詰め込む