| 单词 | Percidae | 
| 释义 | Percidaeplural noun  Per·ci·dae   -səˌdē   : a family of vigorous active percoid fishes that is now usually restricted to freshwater forms of the northern hemisphere including the true perches, pike perches, and a few related forms (as the zingel) but that formerly also included the sand darters or was sometimes made nearly coextensive with Percoidea   see perca   | 
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