"But we didn't find this, so we think [the two species] have formed some kind of reproductive barrier to each other," Prof Saetre said.

“但是，我们没有发现这种麻雀，因此我们认为，这两个物种已经形成了某种彼此之间的繁殖障阻，”萨特尔教授说。

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"But we didn't find this, so we think [the two species] have formed some kind of reproductive barrier to each other," Prof Saetre said.

“但是，我们没有发现这种麻雀，因此我们认为，这两个物种已经形成了某种彼此之间的繁殖障阻，”萨特尔教授说。

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