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。
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。
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。
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。
应用推荐