n.帆布背包。ecological rucksack: 生境口袋framed rucksack: 带架子的背囊to put in a rucksack: 放进背包里to put on a rucksack: 背背包to take off a rucksack: 放下背包下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:rucksack,即可在微信中查询翻译