The DNA found at each crime scene actually came from a female worker in the factory that manufactured the cotton swabs used to collect evidence.

事实上，在犯罪现场发现的DNA都来自生产采证棉签的工厂的一名女工。

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Sara removes a small, dark blue piece of cloth from a pile of bloodied cotton swabs with a pair of tweezers.

Sara从一堆带血的棉球上，用一只镊子取下了一小块深蓝色的布料。

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Ear cleaning should be performed weekly using a vet-recommended solution and cotton balls or swabs.

每周需要清理一次耳朵，所使用的洁耳用品和棉签或者棉球应是兽医推荐的。

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Indeed, Kozmo is frantically trying to ditch its college-student customers, who last year made up 76% of its business, in pursuit of those who will pay a premium to have thousands of items, from DVD players to cotton swabs, delivered to their doorsteps in an hour.

FORBES: Another Swing And Miss For Kozmo.com