Try escaping the unicode
图片 translates as %E5%9B%BE%E7%89%87 using an escape function I tried & I don't know how well it copes with Chinese character, so you might need to find a smarter one. [not generally-accessible resource, so I can't publish it here.]
The app UnicodeChecker installs a service which can convert any unicode character string into percent escapes.
Edit: I tested against one I found online at http://www.url-encode-decode.com
The app UnicodeChecker installs a service which agrees with the above encodingcan convert any unicode character string into percent escapes.
See https://stackoverflow.com/questions/912811/what-is-the-proper-way-to-url-encode-unicode-characters for a reference.