back·pack
noun/ˈbækpæk/
/ˈbækpæk/
enlarge image(British English also rucksack)a bag that you carry on your back, made of strong material and often used by people who go climbing or walking（常指登山或远足用的）背包，旅行包 - She swung her backpack over her shoulder.
她把背包甩到背上。 - He was wearing a heavy backpack.
他背着一个很沉的背包。
Oxford Collocations Dictionaryadjective- leather
- bulging
- loaded
- …
- grab
- shoulder
- drop
- …
- She swung her backpack over her shoulder.
- a piece of equipment that is carried on the back
背负式设备 - a weed-sprayer backpack
背负式喷雾除草器
Extra Examples- In the study, birds were fitted with a 28g backpack radio transmitter.
在这项研究中，鸟类被安装了一个 28 克的背包式无线电发射器。
- a weed-sprayer backpack