vi.

1. 專攻；專門從事[（+in）]
   Dr. White specialized in children's diseases.

   懷特醫生專治兒科疾病。

2. 【生】專化，特化
3. 詳細說明

vt.

1. 使專門化；使特殊化
   Each case must be specialized.

   每個案例都要進行特殊分析。

   specialized knowledge

   專門知識

2. 【生】使專化，使特化
3. 限定；特指；列舉

v.

1. (often specialize in) concentrate on and become expert in a particular skill or area.
   ▸make a habit of engaging in.
2. Biology  adapt or set apart (an organ or part) to serve a special function.