specialized

专门的、专用的

This repair needs specialized tools that most garages don't have.

这项维修需要专门的工具，多数修车厂都没有。

专业的、专精的

He has specialized knowledge of international tax law.

他对国际税法有专业的知识。

专科的

The child was sent to a specialized clinic for treatment.

那个孩子被转到专科诊所接受治疗。

特化的生物学

These birds have highly specialized beaks for cracking seeds.

这些鸟拥有高度特化的鸟喙，用来啄开种子。

专攻、专门从事specialize 的过去式与过去分词

She specialized in marine biology during her graduate studies.

她在研究所时期专攻海洋生物学。