nab       
verb [ T ]  informal uk/næb/ us/næb/ -bb-
 抢夺,猛然抓住;抓获,逮捕(罪犯)
to take something suddenly, or to catch or arrest a criminal
  Undercover police officers nabbed the men at the airport. 便衣警察在机场将那些人逮捕。 
 Someone nabbed my apple when I wasn't looking! 有人趁我没注意抢走了我的苹果!