Jet travel is now a commonplace.

乘喷气式飞机旅行现在是寻常的事。

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But the drug didn't help hamsters who underwent a simulation of westward jet travel.

但是药物并不能帮助仓鼠改善西向的时差综合症。

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Things that were once luxuries, such as jet travel and long-distance phone calls, became necessities.

诸如乘飞机旅行和打长途电话等曾经是奢侈的事情成了生活中不可或缺的一部分。

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Jet travel turned resort areas and hotels into gold mines and helped create the cruise industry we know today.

FORBES: Perspectives

It was at its narrowest in the 1970s, when commercial jet travel to small cities was subsidized.

FORBES: Sell Houses, Buy Chips

Before airlines were deregulated, for example, commercial jet travel was a luxury that ordinary Americans seldom enjoyed.

WSJ: Donald Boudreaux and Mark Perry: The Myth of a Stagnant Middle Class