Mrs.Dracule
要征得责任编辑的同意，同时写一份声明，介绍新添加的作者为论文做出的贡献，最后所有作者签字表示同意添加该作者 
Following the submission requirements， we have done appropriately modified on the paper
According to the requirement， we contribute to paper made modifications
We have made some refinements to the thesis according to your requirments for
