subspecialty / sʌbˈspɛʃ əl ti, ˈsʌbˌspɛʃ- /

📖毕业后词汇亚专业亚专科分科次专业

subspecialty 的定义

n. 名词 noun

plural sub·spe·cial·ties.

  1. a lesser or minor specialty: a cinematographer with a subspecialty of portrait photography.