| 单词 | water gnat | 
| 释义 | > as lemmaswater gnat   water gnat  n. any of various insects associated with water; esp. a bug that lives on the surface film (as a pond skater or a water measurer) or a gnat that breeds in water. ΚΠ 1665    R. Hooke Micrographia xix. 123  				But of this somewhat more in the description of the Water-gnat. 1745    S. Hales Acct. Exper. & Observ. Tar-water 23  				These Water-Gnats, and other small Insects, died..in Tar-Water. 1877    J. G. Wood Useful Arts in  Nature's Teachings xiii. 467  				The common Water-gnat (Gerris), which may be seen in almost any piece of fresh water. 1953    H. Mellanby Animal Life in Fresh Water 		(ed. 5)	 viii. 147  				The Watermeasurer or Water-gnat (Hydrometra stagnorum) is a very attenuated pond skater. 2006    Ottawa Citizen 		(Nexis)	 5 Aug.  e1  				At the same time, what seem like a million water gnats hatch around me. < as lemmas | 
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