美[?b?k?p?k] 1 . Looking back, she feels she should never have hung up her backpack .
回首過去，她覺得自己真不該放下背包不再徒步旅行。
來自柯林斯例句
2 . He squirmed out of the straps of his backpack .
他扭動身體，掙開背包的肩帶。
來自柯林斯例句
3 . She found a seat, stowed her backpack and sat down.
她找到一個座位，把背包放好，坐了下來。
來自《權威詞典》
4 . This suitcase, and a backpack .
這個手提箱和背包.
來自超越目標英語 第3冊
5 . Let me take my camera out of my backpack .
讓我把相機從我的背包里拿出來.
來自輕松英語會話---聯想2000詞(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
