An aerial photo shows the scenic highway completed in Southwest China's Guangxi Zhuang autonomous region to improve the connectivity between Guangxi and Vietnam. [Photo by Huang Dehuan/for chinadaily.com.cn]

An aerial photo shows the scenic highway completed in Southwest China's Guangxi Zhuang autonomous region to improve the connectivity between Guangxi and Vietnam. [Photo by Huang Dehuan/for chinadaily.com.cn]

An aerial photo shows the scenic highway completed in Southwest China's Guangxi Zhuang autonomous region to improve the connectivity between Guangxi and Vietnam. [Photo by Huang Dehuan/for chinadaily.com.cn]

An aerial photo shows the scenic highway completed in Southwest China's Guangxi Zhuang autonomous region to improve the connectivity between Guangxi and Vietnam. [Photo by Huang Dehuan/for chinadaily.com.cn]

An aerial photo shows the scenic highway completed in Southwest China's Guangxi Zhuang autonomous region to improve the connectivity between Guangxi and Vietnam. [Photo by Huang Dehuan/for chinadaily.com.cn]

An aerial photo shows the scenic highway completed in Southwest China's Guangxi Zhuang autonomous region to improve the connectivity between Guangxi and Vietnam. [Photo by Huang Dehuan/for chinadaily.com.cn]