interlocutor
n.
1510s, agent noun from Latin interlocut-, past participle stem of interloqui "interrupt," from inter- "between" (see inter-) + loqui "to speak" (see locution). Related: Interlocutory.
〔李〕[inter-=among在……中间；locut=to speak说；-or n.=person人→“person who speaks among a group 在群体中说话的人”→] n. person who takes part in a conversation参加谈话者；对话者