A smart kid should be accepted as well
Sounds to me like ول دذكي.
If this is because of the specific ending of ولد، then ذكي should be pronounced with a lower voice to avoid confusion in my opinion.
The pronunciation is horrible , it should be ولدٌ ذكي
I tried "a smart lad". it was not accepted. why?
I guess lad is too informal/slang for Duolingo to accept