然而，因为他们大多为群居生活，这可能使得他们成为疾病爆发的源头。

But because they tend to live in clusters, they can be the source of outbreaks.

youdao

然而，因为他们大多为群居生活，这可能使得他们成为疾病爆发的源头。

But because they tend to live in clusters, they can be the source of outbreaks.

youdao