Sometimes we call this a doggy bag.

有时我们称之为打包袋。

It doesn't look like a dog, it's not really for your dog, but you could call it either a to-go box or a doggy bag.

它看起来不像一只狗，也不是为你的狗准备的，但你可以把它叫做打包盒或打包袋。