基本词汇
adj.无用的
v.未击中；弄糟
n.水果布丁；揉好的面团；笨拙的人
英英释义
经典引文
Christmas...The only change was that we had a 'plum duff' for dinner.
出自：R. H. DanaThese are not people who sit on their duff, expecting a handout.
出自：R. CritchfieldI went down to the pub because the play was so duff.
出自：J. LymingtonTo find the duff bulb you'll have to test each bulb in turn.
出自：Which?
