以上来源于: WordNet
N any of various small mothlike dipterous flies of the genus Phlebotomus and related genera: the bloodsucking females transmit diseases including leishmaniasis: family Psychodidae 沙蝇
Rolling grains of sand hit each other "like billiard balls, " said Kirby, and briefly fly into the air.
沙砾“像桌球”一样互相撞击翻滚，然后被风吹到空气中。
Instead, it secretes a glue and USES this to stick bits of sand together to form its casing, in the way that a freshwater caddis fly larva does.
堆沙蠕虫分泌出一种胶状物将沙石粘合在一起形成壳装，这一点类似于淡水石蛾的幼虫。
It took photographer Joel Sartore three months to get the permit required to capture, photograph, and release a single fly from its threatened sand dune habitat in California.
摄影师花了3个月的努力，才获得捕捉许可证，拍摄完毕，把它放回栖息地加利福尼亚州的沙丘。
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