为什么我不能给我的狗戴跳蚤和扁虱项圈？
避免微小寄生虫的最简单方法似乎就是给动物戴上虱子或跳蚤项圈，然后无忧无虑地徒步进入森林。但你绝对不应该这样做。
主持：迈克尔-阿兰达（Michael Aranda）：Michael Aranda
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