small blackish stout-bodied biting fly having aquatic larvae; sucks the blood of birds as well as humans and other mammals 同义词：blackfly, buffalo gnat,
例句与用法
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Islamabad , pakistan ( ap ) - - chunks of concrete are missing from the mosque ' s minarets . the walls of a religious school painted with islamic verses are peppered with bullet holes . black flies over a makeshift bunker , blasted apart under a stairwell 伊斯兰堡巴基斯坦（美联社） - -清真寺尖塔不再完好无损，宗教学校印有伊斯兰诗句的围墙上布满弹孔，楼梯塌落的废墟上，黑色的苍蝇盘旋着。
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