You need not worry too much. The so-called paper retrieval system just means that you can't quote more words. This number can be set. If you write a simple course paper, it is estimated that it is no problem to write no more than 200 words. If it exceeds this number, the quoted part will turn red. If you are original, it doesn't matter. Go to China HowNet to search for some related documents, then post a few words that you think are useful, and then make a famous source. This is a quote, so you just have to write it down, and then it is a quote. So there is another reference.

Actually, don't be too nervous. If you are still in college, if you are writing a thesis for the first time, and if the teacher is not serious, don't worry too much! The teacher won't look too carefully. Relax. Generally, we quote too much and are afraid of the paper detection system. What are you afraid of? Hehe ~ ~ I hope I can help you ~ ~