goof       
 verb [ I or T ] mainly US informal uk/ɡuːf/ us/ɡuːf/
 犯愚蠢的错误;弄错
to make a silly mistake
  If Tom hadn't goofed and missed that shot, we'd have won the game. 要不是汤姆犯了那个愚蠢的错误从而错过那次射门的机会,我们就赢得比赛了。 
 She goofed her lines (= said the words in the play wrong). 她说错了台词。 
 Synonyms: blunder boob 
 Phrasal verbs      
goof around 闲荡,瞎混
to spend time doing nothing important or behaving in a silly way
  The boys spent the whole summer just goofing around. 这些男孩子们瞎混了整整一个夏天。 
 goof off 逃避工作;偷懒
to avoid doing any work
  The teacher told them to stop goofing off and get back to work. 老师让他们不要偷懒了,赶紧开始学习。 
 goof  
noun [ C ] uk/ɡuːf/ us/ɡuːf/
  (MISTAKE)      
  mainly US informal愚蠢的错误 
a silly mistake
  I made a real goof by forgetting his name. 我犯了一个愚蠢的错误,竟然忘了他的名字。 
   (PERSON)     
 US informal傻子,蠢人 
a silly or stupid person