体能训练及参与新鲜的刺激脑力的活动——比如字谜游戏或是数独游戏——就是两种经证实可助你维持大脑健康的方法。

Physical exercise and engaging in novel brain-stimulating activities - such as the crossword puzzle or Sudoku - are two proven methods for helping keep your brain healthy.

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数独(一种数字游戏)，猜字和电子游戏都能促进你的思考速度和记忆力。

Suduko, crosswords and electronic games can all improve your brain's speed and memory.

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该大黄类植物(Rheum palaestinum)却采取了完全不同的另外一种方式：巨大的叶子将水分引导到独根里面。

The rhubarb plant (Rheum palaestinum), however, takes an entirely different approach: its huge leaves funnel water to its single root.

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And this universality was given expression in Dante's famous treatise, De Monarchia, of monarchy, that set out a model for a universal Christian state, based on the unity and oneness of the human race under a Christian ruler.

而这种特性可追溯,至但丁的著名论述《论王权》,探讨君主政权,这设定了一种普遍基督国的模式，根据统一,与独一的人种皆受基督王权的统治。

耶鲁公开课 - 政治哲学导论课程节选