Thanksgiving in the United States, much like in Canada, was observed on various dates throughout history.

同加拿大的感恩节一样，美国感恩节在历史上也经过了很多日期的变迁。

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Geological dates are usually obtained by using the rates of decay of various radioactive elements found in minerals.

地质年代通常是通过矿物中发现的各种放射性元素的衰变率来获得的。

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Various academic studies had found a suspiciously strong correlation between the issue dates of share options awarded to employees and low points in the awarding company's share price.

多项学术研究表明，在奖励给员工的股票期权的发行日期和奖励发放公司的股价低落期之间存在着可疑的密切联系。

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204 So the stele of Merneptah dates to about 1204, and in this victory hymn he's boasting of his victory over various groups in Canaan, and one of the groups he claims to have defeated is Israel.

因此Merneptah石碑可以追溯至，而在这首胜利颂歌中,他在炫耀对迦南部族的胜利，他也提到一个被打败的部族是以色列。

耶鲁公开课 - 旧约导论课程节选

All the offences occurred on various dates between 1 January 1992 and 24 January 2008.

BBC: No prosecution in Martin O'Hagan murder case

All the charges are alleged to have taken place on various dates between 1 July, 2009 and 16 October, 2009.

BBC: Imam denies Stoke-on-Trent mosque rape charges

Molycorp, an American firm which in various guises dates back to the early 1950s, intends to restart what was once the world's largest source of rare earths, a mine in California closed in 2002 over environmental concerns and the then unjustifiable cost of correcting them.

ECONOMIST: Rare earths