• 初级美语 Lesson 25:Traveling 旅行 ConversationA:OnthePlane?ATTENDANT:Pleasefastenyourseatbelt.MayItakethoseforyou??MARTIN:Yes,please.Thanks.?ATTENDANT:You'rewelcome.?MARTIN:Goodmorning.I'mMartinLearner.?KARL:Goodmorning.I'mKarlMush......