Definition: a bag that you carry on your back Level: B1
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.
我买了一个新的红色背包去上学。
I bought a new red ___backpack for school.
