We've recently added support for translating the stories that are included in the carousel on the homepage.
You can add or edit stories by going to the admin homepage and clicking "Stories" under "Content". If you'd like to translate a new story, click "new story" and add the relevant information. Click save and you'll be brought to a screen that gives you a preview of the content and allows you to add translations.
The languages included here are the ones that have been added to your organization. Just click "Translate" to get started.