dippers

例句:

• Dipper Dippers have evolved a superb ability to hunt underwater.
  来自BBC
• There are few bona fide readers but many dippers.
  真诚精读的人很少,但粗读者却很多.
  
• Double - dippers save the states money because they do not have to be trained.
  因为这些人员不用培训,所以领取双份收入的人为各州节省了资金.
  
• Dippers are named for the bobbing and dipping movements they make whilst perched.
  来自BBC
• Dippers feed on a wide range of aquatic invertebrates and fish and are found throughout most of Europe and the Middle East.
  来自BBC