[uncountable; countable, usually singular] (plural oversupplies) more of sth than can be sold
过多的供应；过度的供应◆The steel industry is struggling due to oversupply.
钢铁业由於供过於求而举步维艰。◆An oversupply of paper has led to a fall in price.
纸张供过於求导致价格下降。