“这是一个双向的过程，”他在一份电子邮件中写到，“在我正式研究的几年里我旁边都是最好的教科书，但我经历过一段困难时间”他说新系统“给了我机会能够时刻回复编辑的需要。”

“I, for one, have experienced difficulty during my formal study years with the best of textbooks around.” He said the new system “gives me opportunity to respond to the editing needs all the time.”

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