They went backpacking in Spain last year.他们去年背着背包在西班牙旅行。What advice does Luciano give David about backpacking in Europe?关于在欧洲背包徒步旅行,Luciano给了大卫哪些建议?Your review must be about gear that directly relates to backpacking.你的测评...
The so - called electives mean only some little option within the scope of a certain item.所谓选修科目也只是在某一项目范围内略有拣选余地而已.I have 9 required courses and 3 electives this semester.我这个学期有9门必修课,3门选修课.There are 3 electives from lan...