Notes:
　　1．airline/flight: airline-1.a system for scheduled air transport 航线；a business or company that offers flight service 航空公司：flight: 航班（旅行），在询问机场航班时不能用“airplane/plane” 而要用“flight”.
　　2．Domestic timetable: usually an electronic board or brochure provided by the airport, which shows the time of all flights within the country.国内航空时刻表 . domestic: adj. relating to a family and life at home, or a country’s internal affairs家庭的；国内的 eg. domestic violence 家庭暴力 domestic chores: 家务 domestic animals: 家畜
domestic issues: 国内问题 domestic products: 国产品
　　1．The airline serves mainly domestic routes.( 该航空公司主要运营国内航线)
　　2．Tom was arrested for assault and domestic violence. (汤姆因人身伤害和家庭暴力罪被捕。)
　　3．Direct flight/non-stop flight/lay-over “direct flight 和non-stop flight”具有相近含义，都是指从出发地直接飞往目的地的飞机航班。（a flight from the airport to the destination with no stop halfway ） lay-over: a stay somewhere for a short time before continuing your trip ( 旅行途中的逗留)
　　4．Depart: (vi). to leave, especially when you are starting a trip（formal ）离开；启程 （较正式） [+for] All passengers departing for shanghai on flight HU7106 should go to Gate 7.(乘坐海南航空公司7106次航班前往上海的旅客请到七号门等候登机) [+from] MU234 of China Eastern Airlines to Beijing is departing from Longjia International Airport in ten minutes. (飞往北京的东方航空公司MU234次航班十分钟后从龙嘉国际机场起飞)
　　5．city names in the dialogue:
Las Vegas [las’veiges] a city in the desert of the U.S state of Nevada, famous for Casino 位于美国内华达州的拉斯韦加斯以赌场和娱乐场闻名
Tokyo: the capital city of Japan 日本首都东京
Chicago: the Largest city in the state of Illinois 美国伊利诺伊州最大城市芝加哥
New York：the largest city of U.S, nicknamed “the Big Apple”美国最大城市纽约，又名“大苹果“