There is a famous Chinese saying: one is not a true man unless he climbs up the Great Wall.

中国有句名言：不到长城非好汉。

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He who doesn't reach the Great Wall is not a true man.

不到长城非好汉。

《新英汉大辞典》

The Great Wall〉/was the greatest /man-made military defense structure〉/in ancient China.

大家可以试着读一读这个句子。 断句并可以是稍稍停顿，或者是拉长词的读音，我们在wall 的时候拉长读音，在greatest和structure后稍作停顿，于是这个句子听起来就更加容易理解，因为我们把句子的意群The Great Wall、was the greatest、man-made military defense structure、in ancient China划开了。

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"Wonders of Man" includes photos of the Great Wall of China and Machu Picchu in Peru.

VOA: special.2009.11.20

Although it is not, as is commonly believed, the only man-made object visible from space, China's Great Wall still amazes with its sheer size, and remains impressive as a testament to architectural will, and to the need to keep out the Mongol hordes.

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