An oven is basically a warm box that is heated.

烤箱基本上是一个加热的暖箱。

When the cub had been fed for the last time that night, and put into his warm box, Ethan crawled into his own cot.

那天晚上伊桑给熊宝宝喂完最后一次奶之后，把它放进温暖的箱子，然后伊桑也爬进了自己的小床。