名詞 duologue:

1. a conversation between two persons
   同義詞：dialogue, dialog
2. a part of the script in which the speaking roles are limited to two actors

du.o.logue

n.（名詞）
A dialogue or conversation between two persons:
對(duì)白：兩人間的對(duì)話或談話：
例句：
.a reasonably well-constructed duologue for two experienced performers.(Noel Coward)
.兩位有經(jīng)驗(yàn)演員表演的組織合理的對(duì)白.(諾埃爾·科沃德)