N-COUNT A squirrel is a small animal with a long furry tail. Squirrels live mainly in trees. 松鼠
Red squirrels are uncommon in England.
红松鼠在英格兰很少见。
Ground squirrels are normally active by day and sleep at night.
地松鼠一般白天活跃晚上睡觉。
他们在追赶松鼠。
Otherwise you could have a squirrel host-- I'm using squirrels, because I think that's funnier than other animals to think of— but it could be any potential host, right?
否则松鼠就会变成宿主,我拿松鼠举例,是因为我觉得它比别的动物更有趣,但潜在宿主可以是任何动物,对吧
Because if it was a disease that was carried by both humans and squirrels, for example, then in order to get rid of it on the planet, you'd have to vaccinate not only all the people but all the squirrels, right?
因为假如人和松鼠都能携带,某种疾病的话,想要把这种疾病从地球上清除,不仅要给所有人接种疫苗,还要给所有松鼠接种疫苗
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