但以往关于鸟类以这种方式“未雨绸缪”的诸论断存在争议。

But previous claims that birds "plan" in this way have been controversial.

youdao

但以往关于鸟类以这种方式“未雨绸缪”的诸论断存在争议。

But previous claims that birds "plan" in this way have been controversial.

youdao