To flog a dead horse
Стегать мертвую лошадь (т. е. заниматься явно бесполезным делом).
Голую овцу стричь. Мертвого лечить.
Другие пословицы:
- Don't look a gift horse in the mouth
- It is a good horse that never stumbles
- As well be hanged for a sheep as for a lamb
- Set a beggar on horseback and he'll ride to the devil
- If the sky falls, we shall catch larks
- When the fox preaches, take care of your geese
- A bird in the hand is worth two in the bush
- Birds of a feather flock together
- That cock won't fight
- A bird may be known by its song
- All asses wag their ears
- A wolf in sheep's clothing
- Many a good cow has a bad calf
- If you agree to carry the calf, they'll make you carry the cow
- The cat would eat fish and would not wet her paws