Any of numerous two-winged insects of the order Diptera, especially any of the family Muscidae, which includes the housefly.

苍蝇双翅目带有两支翅膀的一种昆虫，尤指任何一种家蝇科的昆虫，包括家蝇。

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For example, the common housefly reproduces by laying several thousand eggs, so each fly gene gets copied thousands of times.

比如，普通的苍蝇通过产下几千颗卵来繁殖后代，这样每只苍蝇的基因就被复制了上千遍。

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The common housefly is unwelcome around food because flies can carry disease-causing germs.

家蝇在食物周围飞，是令人讨厌的，因为它携带了致病的微生物。

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The 15th-century Florentine Leon Battista Alberti was a ridiculously gifted painter, composer, poet and philosopher--not to mention the author of the first scientific analysis of perspective, a treatise on the housefly and a eulogy for his dog.

FORBES: I've got a secret

The red dot that's supposed to stay in the yellow area is all over the place, like a housefly in a peanut butter factory.

ENGADGET: & Joystiq live from Nintendo's E3 2007 keynote