specializationn.
英 ,speʃəlaɪ'zeɪʃən | 美 ,spɛʃəlɪ'zeʃən
中文n. 专门化；特殊化；特化作用
词根词源
specialization (n.)1837, "act of becoming specialized," noun of action from specialize. Biological sense from 1862. In science and scientific education, "a direction of time and energies in one particular channel to the exclusion of others," by 1880.
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