To work very hard at something for little or no return. In other words, wasting time on work which will not yield reasonable value.
apple polishing|apple|polishing
n., slang Trying to win someone's good-will by small acts currying favor; the behavior of an apple polisher. When John I brought his teacher flowers, everyone thought he was apple polishing.
An polishing idiom dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with polishing, allowing users to choose the best word for their specific context.
類似の言葉の辞書、別の表現、同義語、イディオム イディオム polishing