增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下面一横线，并在该词下面写出修改后的词。
注意：1. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者（从第11处起）不计分。
With a helmet, a small camera and a climbing stick, Cheng Yongmao, his work is repairing the Great Wall, is headed for the Jiankou section of the Great Wall early in the morning. It is one of the most dangerous parts of the Great Wall. To less the transportation burden, animals are used to carry bricks all the way to the foot of the mountain, and manual workers then shoulder bricks to the repair sites. Before arriving at the repair sites, they are often worn out.
The size of the Great Wall bricks is different from those of ordinary bricks. Cheng firmly disagrees with the idea to replace the ancient bricks with similar ones to cut cost. For Cheng, even after hundreds of years, the materials, crafts or practices are used in ancient buildings still need to be followed.
Cheng still insists climbing the Great Wall at most once a week to provide technical guidance for repair workers. He hopes he can contribute more to cultural relics protection.
