When writing a paper, it is very common that the results of duplicate checking of the first draft exceed the standard. In general, the repetition rate of university papers is less than 30%, while in top undergraduate colleges, it is less than 20%. Generally, colleges and universities will cooperate with designated duplicate checking institutions and use the system of duplicate checking institutions to check the duplicates of papers. We know that the algorithms of different duplicate checking institutions are different, so we can use the duplicate checking software designated by colleges and universities to check duplicates, which is more accurate to modify. There is a certain cost in paper duplicate checking, but the cost of duplicate checking of HowNet is relatively high. Generally, the undergraduate thesis is around 300 yuan, so we can use VIP to check the first draft.