Dear Program Committee,

We greatly appreciate your thoughtful comments that helped improve our paper. 
We have revised the paper mainly from the following aspects:
	1. We strengthen our motivation in the introduction. 
	2. We added the analysis of model variance in Table 7.
	3. We add the result on raw data in Table 3.
	4. We add a summary of AT teacher models in Table 11.

Best Regards, 
Hao Cheng