to scratch for fleas 因为跳蚤而抓痒
It is also a great opportunity to check for fleas and ticks.
这也是一个很好的机会,以检查跳蚤和扁虱。
Take bubonic plague for example. The disease is most commonly transmitted to humans through flea bites, and the fleas live on rodents.
以黑死病为例。这种疾病最常通过跳蚤叮咬传染给人类,跳蚤生存在啮齿类动物上。
Take bubonic plague, for example. The disease is most commonly transmitted to humans through flea bites, and the fleas live on rodents.
以黑死病为例,最常见的方式是通过跳蚤叮咬传染给人类,而跳蚤在啮齿类动物身上生存。
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