| 单词 | merganser | 
| 释义 | mer·gan·ser   (mər-gănsər) n.  Any of various fish-eating diving ducks primarily of the genus Mergus, having a slim hooked bill. Also called  sheldrake. [New Latin : Latin mergus, diver (from mergere, to plunge) + Latin ānser, goose; see  ghans- in the Appendix of Indo-European roots.] | 
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