backpack的音标是[ˈbækpæk]。backpack主要用作名词和动词，作名词时中文意思是：（指登山者、步行者使用或背小孩时使用的）背包, （有轻金属框的）箱形背包，作动词时中文意思是：背包旅行。
一、backpack双语例句
1.He put on an old backpack.
他背了一个旧背包。
2.Look what I found in my backpack.
你看我在包包里发现了什么。
3.She wanted you to remember to get Hakeem a new backpack today.
要你记得给哈科米买一个新背包。
4.Are you really going to walk into a job interview carrying a backpack?
你真的打算背着背包去参加面试么？
5.Carried the baby in my arms; carrying a heavy backpack.
把孩子抱在我怀里；背着沉重的包裹。
6.I realized I had left my backpack at home.
我意识到我把书包落在家里了。
7.The traditional backpack with a difference ─ it's waterproof.
这个跟传统背包不同——它防水。
8.He lay back on the grass using his backpack as a pillow.
他用背袋当枕头仰卧在草地上。
