资料来源 : WordNet®

manna from heaven
     n 1: (Old Testament) food that God gave the Israelites during the
          Exodus [syn: {miraculous food}, {manna}]
     2: a sudden happening that brings good fortune (as a sudden
        opportunity to make money); "the demand for testing has
        created a boom for those unregulated laboratories where
        boxes of specimen jars are processed lik an assembly line"
        [syn: {boom}, {bonanza}, {gold rush}, {gravy}, {godsend},
        {windfall}, {bunce}]