专门研究

• specialise
• to specialize in
• specialise in
• specialize in...
• specialize

例句

1. 他专门研究印度洋的鱼类。
   He studies in particular the fishes of the Indian Ocean.
2. 植物学家栽培、采集草或专门研究（尤指药草）其用处的人
   One who grows, collects, or specializes in the use of herbs, especially medicinal herbs.
3. 遗传学家在遗传学方面从事专门研究的人
   One who specializes in genetics.
4. 他专门研究东方史。
   He specializes in oriental history.