日韩午夜精品视频,欧美私密网站,国产一区二区三区四区,国产主播一区二区三区四区

At Zhejiang Rehabilitation Center for the Disabled in Hangzhou, students of the sign language training course learn signs with the teacher August 2, 2005. More than 80 students enrolled at their own expense in the newly opened 10-day basic course of "Chinese Sign Language". Most of them are Hangzhou university students, and employees of the hospitals and shopping malls. They were learning sign language to better serve and help hearing-impaired people. (China.org.cn, 17thcongress.org.cn)