单词	电话录音设备
释义	电话录音设备telecord
随便看	difference scheme difference sequence difference sequent difference set difference-set block code difference set code difference-set code difference signal difference sign test differences in color differences-in-differences estimator differences of co-ordinates difference spectrum differences side-by-side difference stationary difference strategy differences vs totals plot difference synthesis difference table difference temperature difference test difference threshold difference timing difference tone difference tones