Hi Caroline,
Currently when using dynamic content in an email only one segmentation can be applied to one section of content.
I know it's a lot of work to set up but the only way I can see you getting what you want is to create a "Super segmentation" that is a combination of your different criteria.
So this segmentation would have 7 multiplied by X segments (the 7 different languages multiplied by your second criteria "admins and members").
Example
1. English Admins
2. English Members
3. French Admins
4. French Members
5. Swedish Admins
6. Swedish Members
etc.