S-Drive is translatable using Translation Workbench.
To use this feature, you must
Enable Translation Workbench
Translate Custom Labels
Follow the instructions below. These Salesforce help pages my also be useful.
1- Enable Translation Workbench
Translation Workbench lets you specify languages you want to translate, assign translators to languages, create translations for customizations you’ve made to your Salesforce org, and override labels and translations from managed packages. Everything from custom picklist values to custom fields can be translated so your global users can use all of Salesforce in their language.
Note: Translation Workbench isn’t available for single-language orgs.
From Setup, enter Translation Language Settings in the Quick Find box, then select Translation Language Settings.
On the welcome page, click Enable.
Click Add, specify the Language, and identify translator users for the language.
2- Translate Components
To get started in the Translation Workbench;
From Setup, enter Translate in the Quick Find box, then select Translate.
Select a language (if you’re a translator for more than one language).
Select a setup component, for example “Custom Fields”
If necessary, select an object and aspect. For example, Account File and Field Label.
Double click in the translation column to enter new values. You can tab to jump to the next row.
See Help And Training Community Translate Metadata Labels for Salesforce help.
3- Translate Custom Labels
Custom labels are used for error messages and help text. To translate these:
From Setup, enter Custom Labels in the Quick Find box, then select Custom Labels.
Add translation to each Custom Label by clicking the Name of the Custom Labels.
See Help And Training Community Localize Labels in Multilingual Orgs for Salesforce help.