The comment form got few words untranslated.Delete && Spam should be translated, but that didnt happen

Solutions:
Filename:functions.php
Code :

echo '| <a href="'.admin_url("comment.php?action=cdc&c=$id").'">Delete</a> '; 
      echo '| <a href="'.admin_url("comment.php?action=cdc&dt=spam&c=$id").'">Spam</a>'; Line:637-639

I got this text that's not translate (just before the send button) :

"Comment moderation is enabled. Your comment may take some time to appear."

Where can I make the translation ?

Thank you !