Here's our Help Center resource on add your own subtitles & closed captions may answer your question: https://goo.gl/4kW5JZ . Hope this helps!
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Here's our Help Center resource on add your own subtitles & closed captions may answer your question: https://goo.gl/4kW5JZ . Hope this helps!