The king, khufu, built the Great pyramid as his tomb.

胡夫国王建造该金字塔作为自己的坟墓。

Scientists are trying to crack the odd signs in the great pyramid.

科学家们正尝试破译大金字塔内的奇特符号。

The Great pyramid was considered a unique building in the 19th century A.D.

公元19世纪，大金字塔被认为是很独特的建筑。

The largest one of them is the Great pyramid of khufu.

其中最大的是胡夫金字塔。

According to scientific research, the ancient King, khufu, ordered his men to build the Great pyramid stone by stone.

科学研究表明，古代国王胡夫，下令让他的手下一块石头一块石头的建造了大金字塔。

Before the discovery of the Stone, no scholar had been able to understand the strange symbols carved on the great pyramids.

在发现这块石碑之前，没有学者能理解埃及金字塔上刻着的奇怪符号。

In fact, there are more than a hundred of them, most much smaller than the great pyramid, and many very damaged.

实际上，金字塔的数量超过了一百个，大部分都比大金字塔小，而且很多都严重受损。

At that time, there were no modern machines or equipment, so how did the ancient Egyptians build the Great pyramid?

那时候并没有现代的机器或设备，那么古代埃及人到底是如何建成金字塔的呢？

This valley was all about protecting royal tombs, and so were the great pyramids before it.

这个山谷完全是为了保护皇家陵墓，它之前的大金字塔也是如此。

But that's not quite as high up as the great pyramid of Giza which was built a very long time ago in 2570 BC.

但这还没有吉萨大金字塔高，吉萨大金字塔建于很久以前的公元前2570年。

Many believe the great pyramids will last for millions of years if left untouched, but natural disasters like earthquakes can threaten the lasting power of these monuments over time.

许多人认为， 如果不加以破坏， 大金字塔将存在数百万年，但随着时间的推移， 地震等自然灾害会威胁到这些古迹的持久力量。