"Backpackers are generally very social and willing to give advice to fellow backpackers they meet on the road," 背包客一般都很友好,愿意向路上遇到的同行者提供建议。不过,独自外出旅行也会有危险。就在几天前,"A 19-year-old British backpacker missing in Australia for 12 days was found alive," 英国一个19岁的背包客在澳大利亚失踪12天后终于被找到了。好的,今天我们学习的词是backpacker...