Like racing cars that swerve and hit each other on a circular track, the moons' speed relative to each other is low because they travel in nearly the same orbit.

这有点像是突然转向的赛车在环形赛道上相撞，月亮们也在同一轨道公转，所以他们之间的相对速度很小。

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If you must travel, inform a friend or relative of your proposed route and expected time of arrival.

如果必须出行，告知朋友或者家人你的计划路线和预计回来的时间。

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Expedia's corporate travel business still is small relative to Expedia Inc. 's leisure and media businesses.

相对于Expedia旗下的休闲旅游和媒体业务而言，易信达的企业差旅业务规模还是较小的。

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How did CAI get to such a high relative number in travel costs?

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North Koreans of Chinese origin and those with Korean-Chinese relatives across the border take advantage of their relative freedom to travel.

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Asks for money for a variety of reasons (travel, medical emergencies, hotel bills, hospitals bills for child or other relative, visas or other official documents, losses from a financial setback or crime victimization).

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