Its captors demanded a multimillion-dollar ransom for the safe return of ship, cargo, and crew.

劫持者要求数百万的赎金才安全归还船只，货物和船员。

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This theory is the basis of a famous thought experiment known as the twin paradox, in which a twin sibling who travels on a fast-moving rocket ship would return home younger than the other twin.

这个理论基础来自于著名试验猜想，双胞胎悖论：乘坐高速火箭飞船旅行的双胞胎哥哥（或弟弟），回到家后要比他的弟弟（或哥哥）年轻。

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The process is repeated until the leftmost SHIP has no more rows to return.

该过程一直重复下去，直到最左边的SHIP不再返回数据行。

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On Monday,Iran formally notified the IAEA of its response to the nuclear-fuel swap deal, under which it would ship some low-enriched uranium to Turkey in return for higher grade fuel for a Tehran research reactor.

VOA: standard.2010.05.25

After five years the MoD will have the option to extend the charter, return the ship or purchase her outright.

BBC: NEWS | UK | England | Hampshire | Warship HMS Clyde is commissioned

The Soyuz space ship carrying Tito and the cosmonauts will serve as the new lifeboat and the three men will return on the older ship.

CNN: Space tourist feels 'great' in orbit

It is believed crewmates put him in a taxi outside a bar after a night out, but he failed to return to the ship.

BBC: Timmy MacColl case: Missing sailor's family to go to Dubai