They came in a glade to an old hollow oak tree covered with moss.

他们来到一片林中空地找一棵长满了青苔的空心橡树。

This tree hollow, safe from rain, wind, and predators, is ideal.

这棵树是空心的， 不受雨、风和捕食者的影响， 是理想的选择。

In the video, the all-white panda walks toward the mother panda and the cub resting in a tree hollow and signals for interaction.

在这段视频中，这只白色大熊猫走向在树洞里休息的熊猫妈妈和熊猫宝宝，并示意要互动。

After the mother and the cub left the hollow, the all-white panda came back to the tree hollow and sniffed every place where the mother panda had been.

当熊猫妈妈和幼崽离开树洞后，白色大熊猫回到树洞，嗅了嗅熊猫妈妈待过的每一个地方。