"She's expecting twins." "Pair of twins" is redundant, as twins don't come in sets of three.
No, the correct term is "twins." "Two twins" is redundant because twins refers to a pair of siblings born from the same pregnancy.
A pair of eyeglasses is a pair of lenses set in a frame worn on the nose and ears in order to correct deficiencies in eyesight.
A pair of spectacles is a pair of lenses set in a frame worn on the nose and ears in order to correct deficiencies in eyesight.
Twins have been born since man has existed and it is difficult to know when the very first pair were born. The first documented twins were born in American in 945 A.D.
A pair of specs is another term for a pair of spectacles, a pair of lenses set in a frame worn on the nose and ears in order to correct deficiencies in eyesight.
an ordered pair, ie, (x,y).
no
This is yes
Yes.
The collective noun is a pair of twins.
Gemini - two human twins Pisces - two fish