specialist
/ˈspeʃəlɪst/📚 2570 32 3四级六级考研高考A specialist is a person who has a particular skill or knows a lot about a particular subject. 专家
noun [集合/集体]专家；专科医生；美国陆军专业人员（高于一等兵低于下士的军衔）
Peckham, himself a cancer specialist, is well aware of the wide variations in medical practice.
佩卡姆本人就是个癌症专家，非常清楚医疗实践中的广泛差异。
adjective [原级]专业的；专门的；专家的
A specialist has now pronounced him fully fit.
一位专家已宣布他完全康复了。
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