The shape of a water molecule is such that each H2O molecule is surrounded by four neighbours arranged in the shape of a triangular pyramid - better known as a tetrahedron.

一个水分子的形状是这样的：相邻地四个水分子组成一个金字塔形的四面体。

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In the painting on the next page, the ropes coming off the mast of the ill-fated ship form a triangular shape.

在下一页的绘画里，这艘命运多舛的船的桅杆上的绳索构成了一个三角形。

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The triangular shape of the torch also symbolises the three times that London has staged the Games - 1908, 1948 and 2012.

火炬的三面锥形设计还象征着伦敦举办的三届奥运会，分别在1908年、1948年和2012年，堪称奥运历史上的辉煌成就。

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You can see that it goes in, and there's sort of a pyramid or a triangular shape.

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Mr. Hollein's father designed Frankfurt's Museum of Modern Art, which is known to locals as the "pie piece" for its tall, triangular shape.

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