pinking ['pɪŋkɪŋ]

例句:

• The car engine was pinking slightly.
  车子的引擎发出一点点爆震声.
  
• Pinking up means that the nipples turn a bright hot pink.
  变成粉红色就是说乳头会变成透亮的粉红色.
  
• For the slip hem, the raw edge is often finished by pinking.
  为了便于暗缝缲边,毛边常用锯齿切裁的方法进行修整.