a small lump of gold or other precious metal found ready-formed in the earth
天然金块;天然贵金属块。
a small chunk or lump of another substance
(某种东西的)一小块
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a nugget of food .一小块食物。
 
a valuable idea or fact
有价值的想法(或事实)
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nuggets of information .有价值的信息。
 
"mid 19th cent.: apparently from dialect 
