specialist 和expert有什么区别?

specialist和expert有什么区别? specialist 和expert有什么区别? specialist和expert的区别? specialist和expert的区别? expert和specialist的区别 请问 savvy expert specialist 的区别和用法. a specialist or an expert in genetics（a noun） training officer和training specialist有什么区别? an expert in/at/on/with有什么区别?例子：1.an expert in/at teaching small children意思就是说an expert in和an expert at通用对吗?2.an expert in economics3.an expert on foreign affairs4.an expert with the needles authority和specialist都有专家的意思,如何区别?如题. staff/specialist/executive/有什么区别? expert和expert for的区别和意思 expert和expect的拼读 an expert on和be expert in的区别 expert at/on/in 有什么区别 Sales Rep,Sales Specialist和Sales Associate区别在哪里?有个公司招聘的分别有这3个职位,区别在哪里呢?那个更好? marketing specialist specialist是什么意思