Element name duplication

Hi,

  I would like to define a Xml Schema for this piece of XML:

 <myElement>
	<code>22</code>
	<description language="en">xxxxxxx</description>  
	<description language="fr">xxxxxxx</description>
 <myElement>

where both "description" tag are required. How can I specify this with Xml
Schema ?

Thanks

Vincent