1. (of angles) pointing outward at an angle of less than 180 degrees. 
   （角）一个指向外面的小于180度的角。
2. an angle pointing outward; an interior angle of a polygon that is less than 180 degrees. 
   向外突出的角；多角形的小于度的内角。
3. Lean on one's elbows 
   用肘支撑着
4. skinned knees and scraped elbows. 
   破了皮的膝盖和擦伤了的手肘。
5. His worn jacket revealed his elbows. 
   他的破上衣露出了肘部。

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• 1. 外转
  寄销,寄销品 curve outward...外转 elbows pointing outward...两肘分开 enter outward
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