specialist/'spe∫əlɪst/

n. a person who knows a lot about a particular area of work or study

n. [C] 专家；专科医生：[specialist in sth] a specialist in American history 美国史专家

◇a heart specialist 心脏病专家

构词special + -ist

常犯错误

✗ a specialist of British literature

✓ a specialist in British literature 英国文学专家