Third toe第三趾thirdnum.第三；三分之一adj.第三的；三分之一的third rail current collector第三轨集电器Third cranial nerve weakness第三脑神经软弱third-year medical student三年级医学生Third order elastic constant三阶弹性常数third phase of medicine care第三医学, 康复医学third party trust mechanisms第三方信任机制Third cranial nerve function第三颅神经功能third and fourth stage larvae第三、四期幼虫third party reverse logistics第三方逆向物流Third cranial nerve paralysis第三脑神经麻痹