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词汇 dobson
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dobson n.

name for the predatory larva of a type of large insect of eastern North America, by 1870, of uncertain origin, originally a term among fishermen, who use it for bait. The adult male form is large and ferocious-looking but harmless to humans. It has been called dobson fly since at least 1906; the earlier name was hellgrammite (by 2868). 

updated on September 11, 2018

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更新时间:2025/5/1 5:29:39