求翻译：Dinner is usually a feast of seafood and dumplings, signifying different good wishes. Delicacies include prawns, for liveliness and happiness, dried oysters (or ho xi), for all things good, raw fish salad or yu sheng to bring good luck and prosperity, Fai-hai (Angel Hair), an edible hair-like seaweed to bring prosperit是什么意思？

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