answer: #Person1# borrows a book from #Person2# and will only look up the most necessary words.
documents: #Person1#: Thank you for lending me the book.
  #Person2#: Sure. But it's a very difficult one, you need to have a dictionary at your elbow.
  #Person1#: But I'm not used to looking up every new word when I'm reading a novel. I only look up the most necessary ones.