fumble  
verb uk/ˈfʌm.bəl/ us/ˈfʌm.bəl/
  (DO STH AWKWARDLY)      
  [ I usually + adv/prep ]笨手笨脚地做;(尤指)摸索,乱摸 
to do something awkwardly, especially when using your hands
  I fumbled with the lock. 我笨手笨脚地想把锁打开。 
 He fumbled in his pockets for some change. 他在口袋里摸索着找零钱。 
 She fumbled around/about in her handbag, looking for her key. 她在手提袋里摸索着找钥匙。 
 They fumbled around/about (= moved awkwardly) in the dark, trying to find their way out of the cinema. 他们在黑暗中摸索,想从电影院里出去。 
   (SPORT)      
  [ I,T ]漏接(球) 
in sport, to fail to catch a ball
  If Wilson hadn't fumbled that catch, we might have won the match. 如果威尔逊没有漏掉那个球,这场比赛我们可能就会赢了。 
   (THINK OF A WORD)      
 [ I usually + adv/prep ]找不到合适的词表达;搜肠刮肚 
to have difficulty saying or thinking of suitable words
  I was fumbling for the right word. 我正在搜肠刮肚,想找一个合适的词。