specialized

这位医生在儿科领域有非常专业的知识。

This doctor has highly ___specialized knowledge in pediatrics.

这家医院提供针对心脏病的专门治疗。

This hospital offers ___specialized treatment for heart diseases.

这种酶具有高度特异性，只作用于特定的化学反应。

This enzyme is highly ___specialized, acting only on specific chemical reactions.