Lao, also known as Lao, is the official language of Laos. Old sayings are distributed in Indochina Peninsula, which are close to Thai, but there are some differences in the appearance of words. Laoyu is a branch of Zhuang-Dong language family, which has absorbed a large number of Sanskrit, Pali and Cambodian loanwords in history.

Laos covers an area of 236,800 square kilometers. Laos is a landlocked country, located in the north of Indochina Peninsula, bordering China in the north, Cambodia in the south, Vietnam in the east, Myanmar in the northwest and Thailand in the southwest. Laos is 80% mountainous and plateau, and most of it is covered by forest, so it is called "the roof of zhina".

The terrain is high in the north and low in the south, bordering China's western Yunnan Plateau and Yunnan in the north, the plateau formed by Changshan Mountains in the east, and the basins and small plains along the Mekong River basin and its tributaries in the west. From north to south, the whole country is divided into upper Liao, middle Liao and lower Liao. Shangliao has the highest terrain, with the elevation of Chuanqi Plateau of 2,000-2,800 meters and the highest peak of Pubiya Mountain of 2,820 meters.

As the old saying goes:

There are two different forms of Lao phonetic alphabet: the older one is called "Duotan" (meaning "scripture"), which is similar in shape and spelling to the ancient Dai language and is only found in the Baye Sutra in temples or used in Buddhist colleges.

The other is called "Lao Lao" (meaning "Lao Wen"), which is similar in shape and spelling to contemporary Thai. Both of them are reformed from Mongolian-Khmer alphabet and are the official common characters in Laos today.

The above content reference: Baidu Encyclopedia-Old