美[ˈbækˌpæk] 1 . Looking back, she feels she should never have hung up her backpack .
回首过去，她觉得自己真不该放下背包不再徒步旅行。
来自柯林斯例句
2 . He squirmed out of the straps of his backpack .
他扭动身体，挣开背包的肩带。
来自柯林斯例句
3 . She found a seat, stowed her backpack and sat down.
她找到一个座位，把背包放好，坐了下来。
来自《权威词典》
4 . This suitcase, and a backpack .
这个手提箱和背包.
来自超越目标英语 第3册
5 . Let me take my camera out of my backpack .
让我把相机从我的背包里拿出来.
来自轻松英语会话---联想2000词(下)
1.a bag carried by a strap on your back or shoulder
1.hike with a backpack;
Every summer they are backpacking in the Rockies
