no prizes for guessing somethingspokenGUESS used to say that it is very easy to guess something 某事一猜就知 No prizes for guessing what she was wearing. 一猜便知她穿的是什么。
no prizes for guessing something• There are no prizes for guessing why this should be.• Enclosed his picture - no prizes for guessing his breed.
→ no prizes for guessing something at prize1(1)