The police found a knife together with the stolen money, hidden in a hollow tree.

警察在一个树洞里找到了藏匿的小刀，还有赃款。

The ransom note says for my father to leave a thousand dollars in a hollow tree in New Jersey.

赎金条上让我父亲把一千美元放入新泽西的一棵空心的树里。

It had been in search of a hollow tree to hide from the snow at Cologne Zoo in Germany when it became lodged.

这只浣熊是在德国的科隆动物园，当时它正在寻找空心树希望能有地方避雪，结果就卡住了。

He then put the dead man in a hollow tree at his head -- for he wanted to protect him from the wolves -- and laid himself down on the ground and moss.

他于是把死人放进头顶上的一棵空心树——因为要保护他不被狼吃掉——自己则挨着土地和苔藓躺了下来。