Questionnaire about reserving flight tickets 关于预订机票的问卷调查

If your family organizes holidays, normally how many days in advance would you reserve flight tickets for international trips?

如果您家庭计划出行度假，出国旅行的话，通常你们会提前几天预定机票？

If your family organizes holidays, normally how many days in advance would you reserve flight tickets for domestic trips?

如果您家庭计划出行度假，国内旅行的话，通常你们会提前几天预定机票？