葫芦丝美丽草原我的家降b调筒音作1,美丽草原我的家葫芦丝教程g调伴奏

{"rich_content":{"text":"名师推荐：《美丽的草原我的家》葫芦丝演奏，旋律优美，值得收藏","spans":null},"video":{"vid":"v0d8b01b0000brk13bvblhhjt1tv0ulg","duration":49.343,"width":720,"height":408,"file_size":383,"thumb":{"web_uri":"tos-cn-p-0000/47b6a819ff22475980ca422a8f16a453","width":638,"height":360,"image_type":null,"mimetype":null,"encrypt_web_uri":null,"secret_key":null,"encrypt_algorithm":null,"extra":null},"video_size":{"high":{"duration":49.343,"file_size":2533500,"w":720,"h":406},"normal":{"duration":49.343,"file_size":2157474,"w":638,"h":360}},"is_encrypted":null,"md5":"","tos_key":null,"secret_key":null,"encrypt_algorithm":null,"extra":null}}