Plane crashes are very rare, and incidents where everyone aboard is killed are incredibly rare.

飞机失事本来就很少发生，而那种机上所有人都遇难的事故更加稀少。

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In this paper, a review on the advance of expert system applications in these fields at aboard is given.

本文评述了国外这些领域中专家系统应用的进展概况。

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"The two patients aboard will be transported to a medical facility that can provide a level of care that is not available at Amundsen-Scott," says a spokesperson.

一名发言人说：“机上的两名患者将被送往医疗机构，该机构可以提供阿蒙森斯科特所没有的医疗护理服务。”

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Japanese astronaut Koichi Wakata is traveling aboard Discovery and will live aboard the station for several months.

VOA: standard.2009.03.15

He says the best is yet to come. "The space station now is nearly complete, and if you think that you have seen some pretty interesting expeditions aboard the space station, you ain't seen nothing yet,".

VOA: standard.2009.11.30

Everyone aboard is subjected to periodic blasts of spray, and the crew members who have to work on the leeward side spend half their time up to their waists in water.

FORBES: Two Sheets to the Wind

To race aboard Mariquita is to travel back a century, when wealthy yachtsmen such as King George V and Sir Thomas Lipton dueled through the summer on outsize boats that needed 20 sailors just to leave the dock.

FORBES: Magazine Article

One way gamers can stay active aboard select ships is the EA Sports Bar.

FORBES: How Video Gamers Are Influencing The Way Carnival Designs Cruise Ships