Two trousers and four shirts should be accepted as per British English
Two pair of pants should be accepted as per American English
Duolingo should accept both American and British English answers
In both American and British English, "two pants/trousers" sounds unnatural? Shouldn't it be "two pairs of pants/trousers"?
I think "two trousers" is OK in British English, but both should be accepted...
Why "trousers" is not accepted?