With research and a flexible approach, however, you can wipe out much of the cost of conventional travel, sourcing free accommodation and free, or cheap, flights.

然而，仔细研究一番，利用灵活的方法，就可以免去一次常规旅行的大多数费用，找到免费的住宿以及免费(或廉价)机票。

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Clothes, books, food, and travel were all half or less than what they cost in the U.S..

衣服、书籍、食品及旅行费用都只有美国的一半或更少。

youdao

Travel does not have to cost the Earth - or even money.

旅行并不一定要消耗地球资源，甚至钱。

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If your employer participates, your travel management company or business travel agent can likely calculate how much it will cost to offset the carbon emissions from your flight.

BBC: Business travel gives back

And that often doesn't include travel to and from classroom destinations or the cost of accommodation during those stays.

WSJ: An Executive M.B.A. With a Global Flavor

He put aside the costs of buying the cars, and ignored the effect of taxes, to focus just on what it would cost in electricity or gasoline to travel a mile.

FORBES: In Fuel Costs, Electric Cars Win