胡夫金字塔的周长与高之比正好等于pi，
The ratio of the Great Pyramid 's circumference to its original height is equal to the value of pi .
胡夫金字塔每边长770美尺，高481英尺。
Cheops built a pyramid 770 feet on one side and 481 feet tall .
胡夫金字塔胡夫金字塔胡夫金字塔