learn_open_com_cn ，这个已经不行了。。 现在加了很多限制。

Traceback (most recent call last):
File ".\pre3.py", line 84, in
main()
File ".\pre3.py", line 78, in main
sign, acs_token = get_sign_and_token(query, gtk, lang)
File ".\pre3.py", line 53, in get_sign_and_token
sign = execjs.compile(baidu_js).call('e', query, gtk)
File "D:\python38\lib\site-packages\execjs_abstract_runtime_context.py", line 37, in call
return self._call(name, *args)
File "D:\python38\lib\site-packages\execjs_external_runtime.py", line 92, in _call
return self.eval("{identifier}.apply(this, {args})".format(identifier=identifier, args=args))
File "D:\python38\lib\site-packages\execjs_external_runtime.py", line 78, in eval
return self.exec(code)
File "D:\python38\lib\site-packages\execjs_abstract_runtime_context.py", line 18, in exec
return self.exec(source)
File "D:\python38\lib\site-packages\execjs_external_runtime.py", line 88, in exec
return self._extract_result(output)
File "D:\python38\lib\site-packages\execjs_external_runtime.py", line 167, in _extract_result
raise ProgramError(value)
execjs._exceptions.ProgramError: TypeError: 'global' 未定义

有道翻译的输入文本长度太短，比如英译中，英文超过几个单词就不行了