英語候補useless effortlabouring in vainspoiling someone's workif a peasant sows seeds, the crows will dig them up
百日の説法屁一つひゃくにちのせっぽうへひとつ慣用句ことわざ未分類one blunder rendering a long period of effort uselessone fart in a hundred days of sermons
蒔かぬ種は生えぬまかぬたねははえぬことわざ未分類seeds you don't plant will never growif you don't put in the effort, don't expect results