英语新闻标题中的"by"怎么解释?

问题描述:

英语新闻标题中的"by"怎么解释?
如下,希拉里什么?
Hillary Clinton by Robert Gates
U Thein Sein by Thant Myint-U
Xi * by Michael Elliott
Warren Buffett by Barack Obama
Christine Lagarde by Nouriel Roubini
Timothy Dolan by Jon Meacham

原义:旁边,身边
引申义:携同
举例:希拉里克林顿携同罗伯特盖茨祝大家五一快乐!