The best voice position of the experiment group were at 3.6 cm above the prosthesis,and the contrasted group were at 2 cm above the prothesis.是什么意思_The best voice position of the experiment group were at 3.6 cm above the prosthesis,and the contrasted group were at 2 cm above the prothesis.在线翻译_英语_读音_用法_例句