specialization

剑桥词典

a particular area of knowledge or the process of becoming an expert in a particular area
專門化，專業化；專業範疇
Specialization (= limiting study or work to one particular area ) usually doesn't occur until PhD level . 專門化通常到博士堦段才發生。
The lawyer said that he was unable to help us because our case fell outside his specialization. 律師說他幫不了我們，因爲我們的案子超出了他的專業範圍。 返回 specialization