力倍功半

Pinyin: lì bèi gōng bàn Usage: 联合式；作谓语；含贬义 Explanation: 指事倍功半。形容费力大，收效小 Source: 明·刘基《赠陈伯光诗序》：“防微遏几，百病不生。几动形见，力倍功半。” Thesaurus:  stage a war, harass the people and drain the treasury, Tire the troops Dynamic public, one ant hole may cause the collapse of a thousand li dyke, fatigue Had [would] as lief ...as capture, to make big investment for small returns Antonym Group:  Begging pulp liquor, Profit The times