怎样清洗莲藕心里的脏泥
{"rich_content":{"text":"","spans":null},"video":{"vid":"v028b0a90000br7ge6l1mik4inljas40","duration":179.537,"width":960,"height":540,"file_size":1114,"thumb":{"web_uri":"tos-cn-p-0000/e5bf254d74214088b04ba01e7031b8cb","width":640,"height":360,"image_type":null,"mimetype":null,"encrypt_web_uri":null,"secret_key":null,"encrypt_algorithm":null,"extra":null},"video_size":{"high":{"duration":179.537,"file_size":15016238,"w":854,"h":480},"normal":{"duration":179.537,"file_size":10681343,"w":640,"h":360},"ultra":{"duration":179.537,"file_size":17843618,"w":960,"h":540}},"is_encrypted":null,"md5":"","tos_key":null,"secret_key":null,"encrypt_algorithm":null,"extra":null}}