n.
a small indefinite number
"he's coming for a couple of days"
a pair of people who live together
"a married couple from Chicago"
同义词:matesmatch
a pair who associate with one another
"the engaged couple"
同义词:twosomeduoduet
two items of the same kind
同义词:pairtwosometwainbracespanyokecoupletdistichduoduetdyadduad
(physics) something joined by two equal and opposite forces that act along parallel lines