A backpack is a Viking helmet - neither should be a crowed train.背包像维京海盗的头盔一样,不应该带上拥挤的火车.He squirmed out of the straps of his backpack.他扭动身体，挣开背包的肩带。Looking back, she feels she should never have hung up her backpack.回首过去...
Looking back, she feels she should never have hung up her backpack.回首过去，她觉得自己真不该放下背包不再徒步旅行。He squirmed out of the straps of his backpack.他扭动身体，挣开背包的肩带。This suitcase, and a backpack.这个手提箱和背包....