短語(yǔ)詞組短語(yǔ)pyramidal tract system 錐躰束系pyramidal motor system 錐躰運(yùn)動(dòng)系統(tǒng)pyramidal l system 錐躰系統(tǒng)non -pyramidal motor system 非錐躰運(yùn)動(dòng)系統(tǒng)The pyramidal system 錐躰系 返回 pyramidal system