fix tencent(). fix bing(). fix google() can’t get a complete language map. delete temp_language_map fix `request_server_region_info`，can `input`.
4.7.20
fix google() can’t get a complete language map, temporary, to be improved. 37 42 fix bing(). fix deepl(). add language count from 11 to 24. fix default `sleep_seconds`. 39 fix limit of `len(query_text)<5000`. 40 add check_query_text(). make `get_headers()` stronger. make `translate_html()` time complexity from O(n) to O(1), multiprocessing.
4.7.16
make baidu() stronger with js_txt.
4.7.14
follow the provider to adjust the strategy for [baidu(), sogou(), youdao()].
4.7.13
fix bugs by replacing execjs.get().eval(...) to json.loads(...) for google_v2