[] the act or activity of travelling旅行；旅游；游历◆The post involves a considerable amount of foreign travel.这一职位要求经常到国外出差。◆Many companies are now cutting their travel expenses.许多公司在削减差旅费。◆Remember to take out travel insurance before leaving on your trip.出行前别忘了购买旅游险。⨁air / car / rail travel乘飞机／汽车／火车旅行⨁domestic / foreign / international / overseas travel国内／国外／国际／海外旅行⨁business / corporate / leisure travel商务旅行；休闲旅行⨁travel budgets / costs / expenses旅行预算／成本／费用⨁the travel business / industry / market / sector旅游业；旅游市场／部门⨁a travel company / firm / operator旅行社