我常用的两个app是booking与expedia.
expediatravelguide史上最好的旅游观光纪录片英语学习资料游览各国
park travel, australia | find holiday information | expedia
国内购买机票一般是官方,第三方以及航空公司认可的代理商如ez travel
listopedia travel movies | expedia.com.au
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