Official Sponsors和Official Supporters 区别

Officer 和 Official的区别? 请问officer和official的区别 officer与official的区别 OFFICER和OFFICIAL做名词有什么区别? Official Partner For official “official language” normal,formal,official,regular,common的区别. former和previous officer和official officer 和official有什么不同? Official Academic Transcripts 和Academic Reference be away on official business和be on a business trip有什么区别