The first draft of the paper does not need to be uploaded to the system. The first draft of the paper is that you have just written a whole paper without revision and upgrading. After the first draft of the paper is completed, it needs to be revised. At this time, you need to give the paper to your tutor, and then modify it according to the tutor's opinion. After several rounds of revision, the paper is finalized and then can be uploaded to the system.