Like land, sea and air, outer space has become an inseparable part of human life.

与陆地、海洋和天空一样，外空已成为人类生活不可分割的部分。

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"We operate in five domains: air, land, sea, outer space and cyberspace," says Dan Kuehl, a professor of information operations at the National Defence University in Washington.

“我们在五大领域作战：水、陆、空、外太空和网络空间。” 华盛顿国防大学的信息作战教授丹屈尔说，“我们的工作越来越依靠网络空间；

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"Robotics are all over land, sea and air," said DiDio. "Microsoft has a large robotics research program."

迪迪奥(DiDio)表示：“从陆地到海洋，再到天空，机器人技术得到了广泛的使用，微软有着非常庞大的机器人研究计划。”

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Hell notify the life-saving people. Slowly and beautifully, the land rose from the sea.

VOA: special.2010.03.06

We forget about the enormous trading vitality of Asia, even sea vitality and land vitality at the same time, but they are without any question by this point-- with the decline of the Spanish empire, which begins before this course-- the Dutch and the English.

我们先不考虑亚洲大量的贸易活动,包括同时的陆上和海上贸易,在十七世纪之前,随着西班牙帝国的衰退,欧洲最大的贸易实体,毫无疑问是荷兰和英国

耶鲁公开课 - 欧洲文明课程节选

But he says in the long-run the solution to piracy will not be found at sea,but on land.

VOA: standard.2009.10.30

Gone will be the time-tested strategic Triad of intercontinental-range bombers and land- and sea-based missiles.

CENTERFORSECURITYPOLICY: Putin's reset

Even with the deep cuts the START follow-on treaty requires in U.S. strategic nuclear delivery vehicles, it may still be possible to retain a nuclear "Triad" of long-range bombers and land- and sea-launched ballistic missiles.

CENTERFORSECURITYPOLICY: Obama, unilateral Denuclearizer-in-Chief

Such reductions would likely preclude the maintenance of the sort of balanced deterrent posture based on a "Triad" of land- and sea-based missiles and long-range bombers that the United States has correctly deemed necessary for decades - and that may be needed more than ever in the future.

CENTERFORSECURITYPOLICY: The denuclearizers�� dangerous ambitions