1.The Great Wall

1.长城是世界上最大的古代军事防御工程之一。

The Great Wall is one of the greatest ancient military defense projects in the world.
2.长城因其悠久的历史和宏伟的建筑而闻名遐迩。

The Great Wall is famous far and wide owing to its long history and architectural grandeur / magnificent architecture.
3.没有便捷的交通，长城的修建非常之困难。

Without the convenient transportation, the construction of the Great Wall was very difficult.
4.长城，作为一个历史遗迹，是世界上最吸引人的景点之一。

The Great Wall, as a historical site, is one of the most appealing attractions in the world.
5.长城，作为中国的象征之一，因其建筑之宏伟，历史意义
之显著，是世界上最伟大的奇迹之一。

The Great Wall, as one of the symbols of China, is one of the greatest wonders in the world owing to its architectural grandeur and historical
significance.
长城，作为中国的象征之一，不仅是中国的奇迹，也是整个世界的奇迹。

As one of the symbols of China, the Great Wall is a wonder not only to China but to the whole world as well.
它始建于春秋战国时期。

The Great Wall was first built in Spring and Autumn Period and the Warring States Period.
秦始皇统一中国后，连结了各段长城以抵御外敌入侵。

After the unification of China, the First Emperor of Qin linked up different sections of the walls to prevent invasions of the enemies.
现存的长城遗迹主要为建于14世纪的明长城。

The present preserved Great Wall of China is the major parts built in the 14th century, called Ming Great
Wall.
长城有着两千多年的历史，于1987年被联合国教科文组织列为世界遗产。

With a long history of more than 2,000 years the Great Wall of China was listed as World Heritage by UNESCO in 1987.
现如今，长城仍是世界上最受欢迎的景点之一。

Until now, the Great Wall is still one of the most popular tourist attractions all over the world.。