unclear points and will update the paper accordingly in the final version. 2 To Reviewer # 1. 1. Architectures for generators and discriminators. We adopt the generator and discriminator

We sincerely thank all the reviewers for their insightful comments to help us improve the paper. T o Reviewer #2. 1. Are multiple sources more beneficial? This is largely due to the fact that domain gap also exists among different source domains. We will reorganize the layout of Figure 1 in the main paper to make it more clear. We thank the reviewer for pointing this out.