无济于事

Explanation: Economic benefit to help. About things does not help or benefits. Metaphor does not solve the problem. 　　Usage: Partial official; as predicate; analogy does not solve the problem 　　Source: Qing Li Baojia "Bureaucrats" fifty-second back now distant water can not save near the fire, that we re a little help, then scrape up a few hundred silver, also to no avail. " 　　Examples: Failing to act decisively need any hesitation and cowardice are ~'s. 　　Results: Flies to catch cow itch; drop in the bucket 　　Postscript: Flies to catch cow itch; drop in the bucket 　　Riddle: Nobody cares Thesaurus:  drop a bucket into an empty well, a cup of water can't put out the fire on a carload of wood, put a halter round one's neck, make a law only to fall foul of it oneself; be hoist with or by one’ s own petard; get caught in one’ s own trap, suicide, Moths Firefighting, go for very little, Coke boil lapidation, Eggs and stone fight, whoever plays with fire will perish by fire, Cannibalism undesirable consequence, dig one’ s own grave, bring blame on oneself, make self-criticism as one who draws a fire against oneself, art of writing a composition Self-harm, a drop in the bucket Antonym Group:  Fain hair, Highly effective, Chuikang See m, Soratani microphone, be immediately effective, Tatemi result, Effective