backpack

登山者把背包放在路边休息。

A hiker rests his ___backpack by the path.

那位旅行者把他所有的行李都装在一个小背包里背在背上。

The traveler carried all his belongings in a small ___backpack on his back.

机场里有很多人背着大背包。

There are many people with big ___backpacks at the airport.

别忘了带上你的背包，我们要去公园。

Don't forget to take your ___backpack; we are going to the park.