岩画的英文：
petrogram

The rock paintings in the Helan Mountains feature many figures with odd shapes and faces whereas
贺兰山的岩画，形象古怪，面目各异。

" Painted rock carvings are a very ancient art form, and I wonder they were all alike."
彩绘岩画是一种非常古老的艺术形式，但它们都是相同的吗?

The lines of the paintings are compatible with the stone color but contain subtle changes.
岩画的纹路和岩石的色彩既一致，又有微妙的变化。

The last are crude repetitions of earlier ones by Mongolian lamas.
最后是蒙古佛教僧侣制作，图案大多是对早期岩画的简单模仿。

So far many murals and painted rock carvings are found in all parts of China. Here I would like to introduce you two.
目前为止．中国各地都发现了许多壁画和彩绘岩画。下面，我给你介绍两处。

Most of them are painted red with bloodstone powder and ox blood.
南系岩画大都以红色涂绘，颜料是以赤铁矿粉调合牛血等而成的。

Drawing is a particular type of visual art, stemming back to prehistoric times with their rock and cave drawings.
绘图是一种特殊的视觉艺术类型，可追溯至史前时期的岩画或洞穴壁画。

"WeI1, rock paintings boast a wealth of detail hidden in their bold images and smooth lines. "
岩画充分利用形象质朴粗犷，线条流畅有力来表现造型，细节在其中表现出来。

These creations cover an extensive region from east to west, from north to south in the nation.
这些岩画从东到西，自南至北，分布地域十分广泛。