名詞 duo:

1. two items of the same kind
   同義詞：couple, pair, twosome, twain, brace, span, yoke, couplet, distich, duet, dyad, duad
2. two performers or singers who perform together
   同義詞：duet, duette
3. a pair who associate with one another
   同義詞：couple, twosome, duet
4. a musical composition for two performers
   同義詞：duet, duette

du.o

n.（名詞）
【復(fù)數(shù)】 du.os
Music
【音樂】
A duet.
二重唱曲，二重奏曲
Two performers singing or playing together.
一對二重唱表演者或二重奏表演者
Two people in close association:
關(guān)系密切的兩個人：
例句：
a duo of negotiators.
一對協(xié)商者

來源：
Italian
意大利語
from Latin [two] * see dwo-
源自 拉丁語 [二] *參見 dwo-