Can one element have more than one namespaces?

My instructor in a XSLT training said that 
one element can have multiple namespaces. 
Is this true? For example:
<employees xmlns="urn:nwtraders">
   <employee xmlns:myName="urn:mySpace">
      <name>Philips</name>
      <salary>145000</salary>
   </employee>
   <employee>
      <name>Reid</name>
      <salary>91000</salary>
   </employee>
</employees>

The first employee belong to two namespaces?

Thanks,

Don

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