第三人称复数：rucksacks
rucksack基本解释
rucksack
名词帆布背包
rucksack网络解释
1. 帆布背包：ruckle 弄绉 | rucksack 帆布背包 | ruckus 喧闹
2. 背包：Suspenders吊带 | Rucksack背包 | Toe鞋头
3. rucksack
3. 背囊：knapsack 旅行用帆布或皮制背包 | rucksack 背囊 | haversack 小帆布背囊
rucksack词典解释
1. （登山或远足时用的）背包，旅行包
A rucksack is a bag with straps that go over your shoulders, so that you can carry things on your back, for example when you are walking or climbing.
rucksack的翻译
in AM, usually use 美国英语通常用knap-sack, pack, backpack