Fu Xi discovered the flow between heaven and earth.

伏羲发现了天地间的流动之气。

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The Shenzhou XI spaceship returned to the Earth successfully.

神舟十一号飞船成功返回地球。

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The most common pictures are flowers, animals, xi and fu.

最常见的图画有花、动物、喜和福。

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If you have a sample with n observations, it's the summation I = 1 to n of xi/n--that's the average.

如果你有n个观测值,对Xi从i=1到n求和再除以n

耶鲁公开课 - 金融市场课程节选

Naismith was also added to the starting XI - with both Boyd and Nacho Novo on the bench following their midweek efforts against Panathinaikos in the Uefa Cup.

BBC: CHOOSE A SPORT

Domestic chains such as the 500-store Xi-Shu franchise are taking market share from state-owned Xinhua, while foreign publishers such as Pearson (part-owner of The Economist) and Bertelsmann's Random House are looking for local distribution channels.

ECONOMIST: Selling books in China

While some 350 homes in Ruyton-XI-Towns have already been connected using a fibre-to-cabinet approach (making use of existing copper cables), a further 1, 100 homes are expected to be able to access the faster fibre-to-premises line from April.

BBC: Baschurch broadband scheme delayed by weather, says BT