Travel, except during the Dark Ages, has continued to grow and, throughout recorded history, has played a vital role in the development of civilisations and their economies.

除了在黑暗时代之外，旅游业一直在持续发展壮大，并且贯穿有记录以来的历史，始终在各文明及其经济的发展中扮演着至关重要的角色。

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During this time, he travelled throughout the Ming kingdom, carefully studying the lands he passed through and recording his experiences and many discoveries in a diary.

在这段时间里，他走遍了明朝，仔细研究他所经过的土地，并把他的经历和许多发现记录在日记里。

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The mirrors are controlled by a computer that directs them to turn along with the sun throughout the day and to close during windy weather.

这些镜子由电脑控制，指导他们白天跟着太阳的位置移动而移动，在大风的天气就自动关闭。

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Ulster 71 was to be the high point of Mr O'Neill's pet project of civic pride weeks that had been held throughout NI during the previous four years.

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That hit Las Vegas Sands hard as it struggles to manage billions in debt that it took on to build new casinos throughout Asia during a global credit crunch.

FORBES: Magazine Article

PGA.com will also feature two marquee groups during the final two rounds. 2002 PGA Champion Rich Beem will provide commentary and analysis throughout the weekend during PGA.com's live coverage.

ENGADGET: 92nd PGA Championship loads up with HD, online, mobile and 3D video this weekend