供不应求

Explanation: For: supply; should be: to meet; demand: demand. Supply can not meet demand 　　Usage: The main predicate; as predicate; for people or goods 　　Source: "_Select_ed Works of Mao Dun, Changchun South Gate line": "Now the six units in the South to accept the orders, the daily production of one to two tons, in short supply." 　　Riddle: Do not contribute more to obtain Thesaurus:  the gruel is meagre and the monks are many, not enough to go round, not enough (gifts, positions, etc.)