Chinese-American teenager Andrea Liu never expected that an eight-day trip to China to sponsor impoverished students would change her attitude and outlook on life, and win her some good friends.

Spending time in the countryside was a "life-changing" experience for Andrea Liu.

Last June, she and her father Steve Liu visited Zhaojue county in Liangshan Yi autonomous prefecture to offer financial aid to local schools and students. The county is the biggest ethnic Yi hub in Sichuan province.

"Yi people don't have Dior shades or a Louis Vuitton purse, but they have their family and I think that's more than enough. They don't have very many things, so they learn to appreciate life more than someone like me," says the 15-year-old sophomore from San Jose, California.

Andrea was born in the United States and lived for some time in Hong Kong and Shanghai. She moved back to the United States at the age of 7.

"Going to Zhaojue was definitely a new experience for me, because I had never seen anything like that before. In Shanghai, you don't see much poverty," Andrea says.

The weather in the mountainous area is both cold and humid. There are floods in summer. It can be dangerous because students have to walk for hours on the zigzagging road to school and there may be avalanches. Andrea and her father donated tens of thousands of yuan to the schools in need of repair and items, such as desks and textbooks.

She spent a lot of time talking to the locals and students of her age in several villages.

When she visited the family of one student she sponsored, they slaughtered a pig to make a meal for her and her father in honor of their arrival. She knew the pig was a part of their limited income.

"I felt very touched. They are very warm-hearted people who were willing to sacrifice their own hard work for the sake of others," she says.

The most impressive thing to her is that even though the local families have financial and mental burdens, they won't give up and will find ways to support their families.

"As for the students, I have never seen anyone work so hard. The school day lasts about 14 hours," she says.

According to Andrea, education is so important for them. If you get a good education, you are able to get a better job and support your family better, she says.

Andrea's father, Steve Liu, who works in an IT company in Shanghai, says he was surprised that his daughter adapted to the local environment so well and made some good friends.

At first, she found it difficult to get used to the shabby toilet without any flushing water about 200 meters away from the dormitory. Her father asked her to stay in a hotel with him, but she insisted on being with the girls in a dormitory. They stayed up late to talk about what their lives were like and wanted to know more about each other.