| 单词 | vocal sac |
| 释义 | vocal sacnounzoology either of the loose folds of skin on each side of the mouth in many male frogs that can be inflated and act as resonators Words nearby vocal sacvocalize, vocal ligament, Vocal Memnon, vocal muscle, vocal resonance, vocal sac, vocal score, vocal tic, vocal tract, vocat., vocation Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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