We have ruled out tool use and invention as ways of telling animal behavior from human behavior.

我们已经把使用和发明工具，从区分动物和人类行为的方法中排除出去了。

youdao

We have ruled out tool use and invention as ways of telling animal behavior from human behavior.

我们已经把使用和发明工具，从区分动物和人类行为的方法中排除出去了。

youdao