고기를 조리대에 놓으세요. Is more used
How is 정육 different than 고기?
I think 고기 is meat for eating. 정육 Is something prepared by a butcher. So it might not be ready for consumption (without some further preparation by a cook).
고기 is common expression
정육 is only used for 정육점
Which means meat store.
Comment from hinativ
고기를 should be a choice too.
고기 = meat (in general)
정육 = Butcher's meat (i.e. fresh, uncured meat prepared on the premises by a butcher and "tailored" to customer's request)
This term is used as to distinguish from the Supermarket or Grocery store meat.
It is unfair, that Duolingo doesn't provide correct words in suggestions.