You cannot enter here with a backpack.
I’m taking a backpack as my luggage.
Tom always has a backpack slung over his shoulder.
She is carrying a backpack on her back.
In 1981 three friends went backpacking in a remote area of Bolivia.
If you can't lift your backpack, then you can't carry it!
After that, I left, but then I realized that I forgot my backpack at their house.
Whose backpack is this?
He put all the camping equipment in his backpack.
He put his sleeping bag at the bottom of his backpack.
I hunched my shoulder, I picked my backpack up again and I started walking.
I've got my backpack so I can go to school.
They took a sleeping bag and a backpack with a few clothes and some food.
The students have sandwiches in their backpacks.
What sort of adventurer doesn't have a talking backpack like Dora?