title: What is the meaning of "set margin exclusively"?
body: <p>I found a description in CCSprite9Slice's document.</p>
  
  <pre><code>maginBottom
  Sets the bottom margin exclusively.
  </code></pre>
  
  <p><a href="http://www.cocos2d-swift.org/docs/api/Classes/CCSprite9Slice.html" rel="nofollow">http://www.cocos2d-swift.org/docs/api/Classes/CCSprite9Slice.html</a></p>
  
  <p>I couldn't figure out what "exclusively" means.
  Is there difference without it.</p>
  
  <p>Maybe this is a simply English question, but I think this is related programming.</p>