v devote oneself to a special area of work
v be specific about
v suit to a special purpose
v become more focus on an area of activity or field of study
v evolve so as to lead to a new species or develop in a way most suited to the environment
vt. 特加指明, 列举, 使专门化, 限定...的范围
vt.vi. (使)特化, (使)专化
vi. 成为专家, 专务, 专攻, 专门研究, 逐条详述