这项研究就是现代生物学家试图勾划物种分界线时面对的问题的一个例子。

The study is an example of the problems that modern biologists face when trying to delineate species boundaries.

youdao

这项研究就是现代生物学家试图勾划物种分界线时面对的问题的一个例子。

The study is an example of the problems that modern biologists face when trying to delineate species boundaries.

youdao